Each union query must have the same number of columns

JOIN operations do NOT require the same number of columns be selected in both tables. The number of columns in the two selected tables or queries of a. Combining two queries - how? UNION and UNION ALL queries in PostgreSQL with.

This blog post will visit an interesting PostgreSQL operator, UNION.

All sheets have the same number of columns and matching column titles. This lesson of the SQL tutorial for data analysis covers SQL UNION using code. The following query will display all from the first portion of the query ,. Both queries must return the same number of columns.

The corresponding columns in the queries must have compatible data types. An alias only exists for the duration of the query. The data types in each column must be compatible between the individual queries.

All queries combined using a UNION , INTERSECT or EXCEPT operator must have an equal number of.

Compare and merge the of two separate query expressions. For set operations, two rows are treated as identical if, for each corresponding pair of columns , the two data values are either equal or both NULL.

Array parameter in stored procedure sql server

SQL Server table with recursive CTE to build breadcrumb from. List Child to Parent (Create Breadcrumb). CROSS APPLY if you have a column that has a delimited list.

For example, if we want a column to store only integer values, then we can define . PostgreSQL has a rich set of native data types available to users. List All Extended Properties For All Objects In A Database.

Want to pass list of values to stored procedure For example,need to fetch products. ProductID int , ProdName . There are cases where we need to pass the input parameter to the stored procedure as a comma-separated string in order to avoid multiple db . Frequently I have come across requirements to send list or array of data to a stored. SQL database engines that use rigid typing will usually try to automatically.

T - SQL supports variables but puts its own restrictions on their usage. In the query that Listing shows, no row qualifies, and the output is XXXXX. My question is how can I pass a number of integer values to a. Given that you are dealing with only INT values (as the values contained in the delimited string), the fastest way I have come across is to use a .

Sql create table primary key autoincrement

The Personid column would be assigned a unique value. Assume we want to create a table that consists of a primary key , last name, and . AUTO_INCREMENT is used in MySQL to create a numerical primary key value. SQL Auto Increment Tutorial - In SQL , An AUTO INCREMENT allows a unique. CREATE TABLE Students ( Student_ID int IDENTITY(1) PRIMARY KEY , . Identity is used to make a column Auto Increment.

Create Personel Table with . NO_AUTO_VALUE_ON_ZERO SQL mode is enabled. INT PRIMARY KEY NOT NULL . SQL Server - Primary key and Auto Increment of Primary Keys. A primary key must be unique as it uniquely identifies a row in a. Auto increment columns widely used for auto-generating values for primary keys in Database tables. Most of the databases like SQL server etc . City VARCHAR(255), Country VARCHAR(255), Salary INT, PRIMARY KEY (ID) );. SQL AUTO INCREMENT field allows a unique number to be generated.

A sequence is often used as a primary key column. When creating a new table , the sequence is created through the SERIAL pseudo-type as follows: . This primary key column is known as an identity or auto increment column. In this example, we created a new table named leave_requests with the request_id.

SQL auto Increment fiel sql server auto increment , auto increment ,Mysql auto increment , sql create table auto_increment , SQL primary key.

Ms sql delete join condition

The following examples show how to use full-text searching by creating. MATCH to name the column or columns to search and AGAINST () to specify the. There is an example of how to use the extended query syntax here.

Full-text searching is performed using MATCH () and AGAINST functions. MySQL natural language full-text search example. There are two functions which can perform the full-text search in MySQL , MATCH () and AGAINST () functions.

Before we get to some examples , we should first talk about the variables. SELECT i title, body, MATCH (title,body) AGAINST. MATCH () erwartet eine Kommaseparierte Liste mit allen Spalten, in denen gesucht werden soll, wohingegen AGAINST () den entsprechenden . The next example shows how to retrieve the relevance values explicitly. Begin by creating a sample table, using the SQL commands below:.

Once you have a FULLTEXT index, you can search it using MATCH and AGAINST statements. For example : SELECT headline, story FROM . In this tutorial, you will use MySQL 5. Now add some example data to the table.

Order by postgresql

After a query has produced an output table (after the select list has been processed) it can optionally be sorted. If sorting is not chosen, the rows . How the result set will appear from a table according to a select statement, either in the normal sequence of the table or in . The ORDER BY clause can only be used in SELECT statements. The data is sorted on the base on one or more columns.

Let us try to sort the data. For the sake of simplicity I am using the most simplistic statements possible. You can retrieve data from the table using a SELECT statement. Upgrading SQLAlchemy from 1. Below you will find a little tutorial on how to sort data in a custom order. For example, if you have a list of team members, you may . Trying to explain why there is difference in performance between the two queries.

They are not listed in any order of importance. Most will probably be familiar old friends. Perhaps some will become new acquaintances. However, once you start storing millions of rows you can save space by using a different order. For the above example, the ideal column order would be the . This function will just rank all selected rows in an ascending order , . Storing row order should be compact on disk, and re- ordering items.

Other operators (such as Sort ) do read the entire input set before returning the first row.

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Row_number dense_rank

ROW_NUMBER () , except that “equal” rows are ranked the. Row_Number , Rank, Dense_rank all starts at. This function is similar to Rank with only difference, this will not leave gaps between groups. So if we use the same query used . Found a great article that reviews the differences between these useful window functions. It depends on upon which ranking function you are using e. The row_number () function always generates . The difference is easy to remember.

Returns the rank of a value in a group of values. Online analytical processing (OLAP) specifications provide the ability to return ranking, row numbering, and existing aggregate function information. Row number in Apache Spark window — row_number , rank, and. The only difference between rank and dense_rank is the fact that the rank . Partition by column name Order by . These are helpful for creating a new . We have created a TEMPORARY . Let us assume, i have a emp table columns ename,sal.

Because the differences between them are quite subtle, the specification of the query must be. With the table wf_example created in previous example, run: select i , dense_rank () over (order by i) , row_number () over () . OVER (ORDER BY x) AS row_number , dense_rank () OVER ( ORDER BY x) AS dense_rank , rank() OVER (ORDER BY x) AS rank FROM t1 .

Azure machine learning service

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Python datetime milliseconds

To show all currently loaded modules with their arguments, run pacmd and enter the CLI command list- modules. A Module is a collection of methods and constants. The methods in a module may be instance methods or module methods. Instance methods appear as . This modules adds and remove nodes from the. Module for setup of ActionGroupConfig Avi RESTful . For more information about updating or writing modules , see the configuration language documentation.

This article explains how to use JS modules , how to deploy them responsibly, and how the Chrome team is working to make modules even . Below is a list of third-party modules for NGINX and NGINX Plus, created and maintained by members of the NGINX community. This is a list of Redis modules , for Redis v4. This list contains two set of modules : modules under an OSI approved license, . In modular programming, developers break programs up into discrete chunks of functionality called a module. Each module has a smaller surface area.

An array of Rules which are matched to requests when modules are created. These rules can modify how the module is created. A module is a file containing Python definitions and statements. The file name is the module name with the suffix.

For the final sample app with a feature module that this page describes, see the live .

Spark rdd map example

RDD API Examples text_file = sc. Spark RDD Map Example – Map Strings in RDD to the number of words in it. If we recall our word count example in Spark , RDD X has the distributed array of the words, with the map transformation we are mapping each element with integer and creating a tuple like (wor 1). This page provides Scala code examples for org.

We will also see Spark map and flatMap example in Scala and Java in this . In the map , we have the flexibility that the input and the return type of RDD may differ from each other. Lets discuss indetail how to create Spark RDD operations using Scala. RDD with an example in the below section:.

We have transformed the RDD again by using the map method i. In Scala , for the functions on . Map and flatMap are similar, in the sense they take a line from the input RDD. HDFS with following lines:. LikeDifference between map and flatMap transformations in Spark (pySpark) Comment. Spark has certain operations which can be performed on RDD.

Run through some Spark Transforamtion examples including: map flatMap filter mapPartitions. Example : If line is hello worl the function returns 2. Filter, groupBy and map are the examples of transformations. Action − These are the operations that are applied on RDD , which instructs Spark to perform .

Kids chat room net

We welcome all boys and girls. The room does not have a specific topic and . Have fun talking to other kids online about whatever is going on in your home, school or life in general. You are welcome to our safe kids chat room in which we offer a good place for youths to chat when they are bored or when they want to meet . According to Guard Chil.

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Borderimage radius

You can use these beautiful CSS box - shadow examples in your work. If you use it and like it please . The optional third value defines the blur of the shadow. The color will be diffused across 10px in this example , from opaque to . See “Rounded corners and shadowed boxes ” for an example.

Set the properties of your box shadow to get the CSS style.

Use the sliders and the color picker to set the values and watch the live preview. As it happens, CSS has a specific property for creating shadows around an element: box - shadow. Take the following DIV block as an example.

See the demos section below for examples. The box - shadow property can also be used to create a dimming overlay background effect behind a modal window. Utilities for controlling the box shadow of an element.

Add or remove shadows to elements with box - shadow utilities. While shadows on components are disabled by default in Bootstrap and . But this additional box shadow takes the effect to a whole new level.

Learn how to create amazing box shadows with css gradients, and some nifty tricks! All other parameters are the same. Box Shadows in pure CSSto save your time.

Localdatetime to iso string

LocalDate date = LocalDate. Few Java examples show you how to convert a String to the new Java Date. The ISO_LOCAL_DATE_TIME formats or parses a date-time without an offset, such as . Btw, if your date string is not in ISO format expected by parse . Constructs an instance set to the current local time evaluated using ISO chronology in the.

Note that it represents a date without any time or timezone information. Converted Date in default ISO format: . A locale-specific string that represents a date. Parameters: s - The ISO formated date string to parse.

If we pass a string rather than a number, then the Date object uses the. Create an ISO formatted date string from the user input date and use it to create. Questions: How can I convert the date object which is already . This section describes the java. JavaScript toISOString() Method.

The local datetime should be constructed via the TimeZone trait. The strftime() function also takes a format string as its first argument. Returns a string formatted according to the given format string using the given.

These built-ins are deprecated since FreeMarker 2. Timezone-independent, stores a date. Since my server is configured to work in UTC timezone there is no need to. Returns the date as a string , using the ISO standard: toJSON() Returns the date.

Oracle generated always

Oracle 12c introduces two alternatives to this by providing identity columns and. If the datatype is omitte it is determined based on the result of the expression. When you insert a new row into the identity column, Oracle auto- generates. Instea either specify the DEFAULT . GENERATED ALWAYS : Oracle always generates a value for the identity column. CREATE TABLE supports the specification of generated columns.

Optionally, the phrases ? The column expression must reference columns defined on the. Identity columns were introduced in Oracle 12c. Learn how to define an auto increment primary key in Oracle. We can create Auto increment columns in oracle by using IDENTITY. In order to add a virtual column to an existing table, use the alter table . Oracle supports only virtual virtual columns, not persistent virtual columns.

In Oracle 12c R the infrastructure to make this operation automatic. In relational databases a virtual column is a table column whose value is automatically. Unable to generate mock data for Oracle table with auto- generated. Posts about generated always as identity oracle written by Shan Nawaz.

When you want to generate a unique number, for a primary key, the most common idea (and the right one) is to get a number from an always. Virtual Columns are new database featured introduced in Oracle 11g.

Can t connect 10061 mysql

Unable to connect to remote MySQL server 1 vastaus 15. You should check that there is a MySQL server running, that it has network connections enable and that the network port you specified is the one configured on the server. Lisää tuloksia kohteesta stackoverflow. This article shows a fix that . If you have grant all privileges then you need to do this.

To access remotely, for mysql server running on Ubuntu 16. Apply OS: Windows, macOS, Linux, iOS Apply Navicat Product: Navicat for MySQL , Navicat for MariaDB, Navicat Premium Apply Navicat . If you are having this problem, it means that your MySQL server is now allowing remote connections. To solve this, you must follow the next . A possible solution to MySQL remote connection issues. Check your firewall and the MySQL config file to see if bind-address is enabled.

After lots of searching I . I try to use Heidi Portable , try and with 6. I now cannot connect to MySQL server. As you are only listening on ipv php must have figured this out and is making an ipvconnection. Prior to upgrading my desktop computer to windows 8. ALl of a sudden, my machine for no reason wants to connect to the hMailServer program and I get . I have opened the port and installed . I am using the command prompt to.

The following command returns a lot of connections in state .

Sql average count

The AVG () function returns the average value of a numeric column. Microsoft SQL Server articles, forums and blogs for database administrators (DBA ) and. I can get the number of lines per . This function returns the average of the values in a group.

It should be noted that except for count , these functions return a null value when no rows. SQL aggregates every and any or some. COUNT is an example of an aggregate function, these are what really give the GROUP. The SUM function totals up the values returne in similar fashion AVG.

GROUP BY tells SQL what field or fields we want to use to aggregate the data. Aggregate functions can be used in conjunction with other SQL clauses . Well, I am back with another SQL question and you guys have been so. If i read this correctly, what you want is an average of the count of . Database SQL Language Reference. The AVG function is used to find the average value in an expression. The syntax for the AVG function is,.

SELECT AVG (expression). It has the same pattern as COUNT , so you can just write AVG after . Next Tutorial: SQL COUNT Function . But what if you want to aggregate . This post is part of a project to move my old reference material to my blog. A Comprehensive Guide to Healthy SQL Server Performance Robert Pearl.

Here is a query that can get you the average task counts against the SQL Server.

S3 protocol

As Sserves all of its . At the heart of AWS is S, the Simple Storage Service, an online object store. From a user perspective, these protocols give little in the way of . Making it open source, ownCloud follows the Open Standard Sprotocol. Content Collaboration Platforms are all about file storage. The AWS Shas grown to become the largest and most popular public .

Amazon Web Services has emerged as the dominant service in public cloud computing. Amazon Sendpoints support both HTTP and HTTPS. It is an object store which exposes . For many years, the dominant protocols to access shared storage have been block and file. Block-based access provides the ability, as the . The Oracle ZFS Storage Appliance SObject API operates on the following ports: Port Number. Heyo squad - anyone know which protocol Sleverages to transfer files using putobject and getobject commands?

Can I access the Sbuckets via FileZilla?

Is there any limitation in secure transfer for Sprotocol ? Trying to upload file object to Sbucket through secure transfer using Sprotocol.

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Tensorflow hub modules

By a module , we mean a . There is no straightforward way to do what you want to do, because TF Hub modules are really built to represent pre-trained model pieces. Returns: ELMo pre-trained model wrapped in TenserFlow Hub Module. TensorFlow Hub is a way to share pretrained model components. In this tutorial, we will create a . Download and use NASNet feature vector module.

At Strong Analytics, many of our projects involve using deep learning for natural language processing. In one recent project we worked to . To install this package with conda run one of the following: conda install -c conda-forge tensorflow - hub conda install -c . Exploring Tensorflow Hub. Answering my own question, since I figured it out. The module is actually a saved model. It contains pre-trained weights and graphs.

It is compostable, reusable,re-trainable. Module object from a string with its URL or filesystem path, such . Text embedding modules in tensorflow hub. Tensorflow hub had not much problem installing, upgrading and initializing in.

The MachineLearning community on Reddit. Reddit gives you the best of the internet in one place. See the full list of tags for the available images. By reusing a module , a developer can train a model using a smaller dataset, . Video classification: import tensorflow as tf import tensorflow_hub as hub from Dataset import Dataset dataset = Dataset() module = hub.

Javascript format date iso 8601

The question asked was ISO format with reduced precision. Convert ISO Date to Date Format yyyy-mm-dd. YYYY-MM-DDTHH:mm :ssZZ). The date object is created using date () constructor. The toISOString() method converts a Date object into a string, using the ISO.

A timestamp is a universally supported time format. Independent of input format , Javascript will, by default, output dates in full text. Return the formatted date string in the given format.

The Date picker element could then return just a Date in ISO format. Worth noticing fact is that Date. Since there is no actual format function in Date API, even . If you use the ISO format , even if you give only the date and not the time and timezone,. For web applications especially, formatting a date is a pretty common task.

The complete format looks like . Working with Localized Strings. DateTimeFormat: usage, examples, and more. Specifies that only the date be included.

I recently encountered several issues in displaying dates in the correct format and timezone whilst working on a mobile application project. This article presents a function that parses an ISO datestamp into a. Daniel Fisher on Web, Data and Security - Her: How does your perfect date look like? Me: Well the only format I can accept is . The QML Date object extends the JS Date object with locale aware functions.

Snapwidget

Embed your photos with a responsive Instagram widget. We offer customizable photo and video widgets for. How to create an Instagram widget to add to your Showit site using snapwidget , lightwidget, or stadget. You enter in your Instagram account information, along . This Pin was discovered by Ann.

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Python3 scipy

To install scipy for python3. This corresponds to the python2. How do I install scipy for Python3. Windows only, but more actively maintained and supports the latest Python versions.

SciPy (pronounced “Sigh Pie”) is a Python -based ecosystem of open-source software for mathematics, science, and engineering. In particular, these are some of . SciPy supplements the popular NumPy module ( python -numpy package), gathering a variety of high level science and engineering . The SciPy library depends on NumPy, . On Ubuntu, the default Python installation is split into a number of separate packages. There is also a video version of this tutorial: . Trying to load python- scipy however alwas fails. For the earlier installs I had to use, e. Install using sudo apt-get . NumPy is the fundamental package for scientific computing with Python.

It contains among other things: a powerful N-dimensional array object. How to install NumPy SciPy Matplotlib for Python on Ubuntu 19. Python - debugging symbols python-scipy- doc: scientific library for Python - documentation python- scipy : scientific tools for. My Linux experiences are primarily associated with Ubuntu an until recently, have never had to work with an rpm style distro. Essential scientific libraries: sudo apt- get install python3-numpy python3-matplotlib python- scipy python3-pandas .

Self join

SELECT column_name(s) FROM tableT tableTWHERE condition;. Self - joins are used to compare values in a column with other values in the same. FName AS Manager FROM Employees e JOIN Employees m ON e. In this video we will learn about 1. Learn what a self join is and when you can use one.

Self Join is not a different type of. The full Introduction to Oracle SQL course is available. Consider the two tables. Use a self join to join a table to itself within a query.

Alfreds Futterkiste, Maria Anders, Obere Str. Summary: in this tutorial, you will learn about a special type of join called SQLite self - join that allows you to join table to itself. Note that you should be familiar . The self - join statement is .

It is almost a cross join is an error. A join does not always have to involve two different tables. You can join a table to itself, creating a self - join. Joining a table to itself can be useful when you want . Creating a Self - Join Query to relate data within a table in Microsoft Access: When working with Microsoft Access Queries you will no doubt work with a range of .

Count multiple columns mysql

How to make multiple counts in one query? Counting on Two Different Columns in the. Count () function and select with distinct on multiple columns. Select with distinct on two columns. SQL: How do you do a SELECT where multiple columns have a. In MySql , you can just add the columns as parameters in count method.

Two NULL values in the val column are ignored. I would like to get the as total of amounts for the col1 . If you name columns to select in addition to the COUNT () value, a GROUP BY. The counts all differed in the way they used specific predicates.

To check for duplicates in MySQL , you can use group by having clause. Well, looking at the ingredients table, no combination matches your WANTED output. DISTINCT can be used with aggregates: COUNT , AVG, MAX, etc. Can Multiple Columns Be Used in GROUP BY? In the next blog post, I will visit two additional aggregate functions, SUM() and AVG().

Aggregate Functions Part 1: COUNT () – With examples in MySQL. SUM of Multiple columns of MySQL table. We might be tempted to try JOINing the two tables and using COUNT : . We can concatenate multiple MySQL rows into one field using. Here is one example of getting distinct count on multiple columns without using aggregate . Using the group by statement with multiple columns is useful in many different situations – and it is .

Model zoo tensorflow

Tensorflow detection model zoo. We provide a collection of detection models pre- trained on the COCO dataset, the Kitti dataset, the Open Images dataset, the . Creating accurate machine learning models capable of localizing and identifying multiple. Take state-of-the-art optimized research models and easily deploy them to mobile and edge devices.

Identify hundreds of objects, including . For example, some applications might benefit from higher accuracy, while others require a small model size. You should test your application with a variety of . A pre-trained model is a saved network that was previously trained on a large dataset, typically on a large-scale image-classification task. Species Detection Dataset from the tensorflow model zoo git reposit. Download pre-compiled demo models that are compatible with the Edge.

If you plan to train a model yourself, . Posts about tensorflow detection model zoo written by Er Sanpreet Singh. There are many pre-trained object detection models available in the model zoo. You can likely use the caffe to tensorflow model converter to convert model zoo models. This folder will contain the pre-trained model of our choice,.

This page on github is my go to page to find the pretrained models that I think you are looking for including.

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Timestamp to date php

On the other han we use variable -length string for name , as its length varies - VARCHAR is. The Oracle ROWTYPE attribute provides a record type that represents a row in a database table. A stored procedure is a set of SQL statements that can be stored in the server.

As you can see, each row from the result set has been concatenated into a single row. When we insert several rows into the same table, there is no need to run.

Query OK, rows affected (sec). SELECT GROUP_CONCAT(TaskName) FROM Tasks;. Unfortunately, MySQL does not have PIVOT function, so in order to rotate data from rows into columns you will have to use a CASE.

You probably have a lot of queries that require MySQL to scan entire tables or . The select will need to return one row and the variables being . So, the ultimate answer to my own question is, as follows. The stored procedures on MySQL version 5.

A WHERE clause can be given to select rows using more general conditions, as. With user-defined session variables and TRANSACTIONS. In this video we will be creating variables in SQL Fiddle.

Python parse time

Thankfully, Python comes with the built-in module datetime for dealing with. Using this module, we can easily parse any date- time string and . The functions in this module do not handle dates and times before the epoch or far in the future. Python string to datetime, Python strptime() function, Python convert string to date , python string to date, python time strptime(), parse string to . This is the directive which would be used to parse the given . Time conversions can be tedious, but Python offers some relief for the frustration.

Create a string variable with the war start time. Specify a date parse order if arg is str or its list-likes. Y”, note that “ f” will parse all the way up to . Table of date and time parsing and formatting parameters. To convert this string to a Python datetime object using the datetime.

If you want parse to ignore time zone information entirely and return a . Purpose: The datetime module includes functions and classes for doing date and time parsing , formatting, and arithmetic. I have a system (developed in Python ) that accepts datetime as string in VARIOUS formats and i have to parse them. Write a Python program to get current time in milliseconds. As POSIX time does not handle leap seconds (nor does Python ),.

A better way to fully parse the string including the offset is by using the .

Fontfeaturesettings

This property gives us control over advanced typographic settings such as small caps, ligatures, and swashes. To activate them you must . Whenever possible, font -variant shorthand property or an associated longhand property, font -variant-ligatures, font -variant-caps, font -variant-east-asian, . HTMLでも実はCSSの font - feature - settings プロパティを指定するだけで自動カーニングができます。ほとんどのブラウザが . Read about the property and try examples. OpenType-enabled webfonts from Fontdeck.

WEBで字詰をしようと思ったら画像化したテキストじゃないと…そんなことは . The version of this property using a vendor prefix, -ms- font - feature - settings , has been deprecated. To ensure compatibility in the future, applications using this . CSS Eigenschaft: font - feature - settings - CSS Kategorie: Schrift (allgemein), Fonts (CSS 3) - CSS Referenz, alle CSS Eigenschaften im Überblick. The list of features depends on the font.

CSS font - feature - settings 語法並不複雜，只是支援的關鍵字屬性值何其 . HTMLテキストの自動カーニングが設定できる？いやいや、不勉強で全く知りませんでした。 仕様の . It provides font-features that are specifically used in rare cases. It is intended as a way of providing access to font features that are not . This website stores cookies on your computer. These cookies are used to collect information about how you interact with our website and allow us to remember . A detailed look at the benefits of new CSS properties for typography, including hyphens, text-rendering, and font - feature - settings.

Drop unique index postgres

If your table has a surrogate primary key column with a name id , you do not have to do. Recently I found myself trying to programmatically find out which columns on a database table were acting as the primary key. Unsubscribe from bensonissac?

I needed a way to track to multiple -choice questions, and to limit possible to each question. This tutorial shows you how to use SQLite PRIMARY KEY constraint to define. Unlike other database systems e.

Doctrine supports composite primary keys natively. Composite keys are a very powerful relational database concept and we took good care to make sure . Why and when do we use composite primary key ? Use the Primary key dialog to create or modify a primary key constraint. CONSTRAINT pk_tbl_TestUniqueNull_ID PRIMARY KEY (ID).

Peewee uses AutoField to signify an auto-incrementing integer primary key ,. In that case the database creates an index on all primary key columns—a so- called concatenated index (also known as multi-column, composite or combined index). Composite primary keys are discussed in more detail here: Composite.