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User-Defined vs. Stored Procedure Variables
This section provides a tutorial example to show you differences between user-defined variables and stored procedure variables: syntax, declaration and scope. 2022-10-01, ∼301🔥, 0💬

Connection URL Tests on Older MySQL Connector/J
Describes the connection URL format test program and result with older MySQL Connector/J releases. 2022-10-01, ∼300🔥, 0💬

Table Column Types for Look Up Values
Describes 2 types of table columns to store look up values: ENUM and SET. 2022-10-01, ∼298🔥, 0💬

HelloMySQL.pl - Sample Perl Program to Use MySQL
This section provides a sample Perl program, HelloMySQL.pl, which connects the MySQL server on the local machine, creates a table and inserts a record into the table. 2022-10-01, ∼297🔥, 0💬

Cast Function
Describes the CAST() function, which can be used to convert a value of any datatype to any other datatype. 2022-10-01, ∼296🔥, 0💬

CREATE PROCEDURE - Statement to Create Stored Procedures
This section provides tutorial examples on how to use CREATE PROCEDURE statements to create stored procedures. 2022-10-01, ∼296🔥, 0💬

Date and Time Operations
This section provides a list of date and time operations supported by SQL and some examples. 2022-10-01, ∼292🔥, 0💬

Table Column Types for Byte Strings
Describes 2 types of table columns to store Byte strings: BINARY and VARBINARY. 2022-10-01, ∼292🔥, 0💬

Solutions for Slow Queries
This section provides some suggestions to resolve slow query problems including refreshing table statistics, rebuilding indexes, optimizing table data storage, and changing storage engine. 2022-10-01, ∼291🔥, 0💬

mysqli_connect() and Other MySQL Functions
Describes functions supported by the MySQL extension library, php_mysql.dll. mysql_connect() creates a connection to the specified MySQL server. 2022-10-01, ∼290🔥, 0💬

Arithmetic Operations
This section provides a list of numeric operations supported by SQL and some examples. 2022-10-01, ∼289🔥, 0💬

Capture Slow Queries
This section provides a tutorial example on setup MySQL server to capture slow queries based on given conditions on execution time and number of rows examined. 2022-10-01, ∼288🔥, 0💬

MySqlLoop.php - MySQL Functions Test
A tutorial example is provided on how to use MySQL functions to connect to a MySQL server, and run SQL statements to create a table, insert rows and fetch rows with the MySQL server. 2022-10-01, ∼285🔥, 0💬

Table Column Types for LOB (Large OBject)
Describes 8 types of table columns to store LOB (Large OBject) data: TINYBLOB, BLOB, MEDIUMBLOB, LONGBLOB, TINYTEXT, TEXT, MEDIUMTEXT, and LONGTEXT. 2022-10-01, ∼283🔥, 0💬

DELETE FROM - Statement to Delete Records from Tables
A tutorial example is provided on how to use DELETE FROM statements to delete records from tables. 2022-10-01, ∼282🔥, 0💬

System Variables Like @@version
This section provides a quick introduction on system variables, which are used by MySQL server to represent system information or control system behaviors. 2022-10-01, ∼279🔥, 0💬

UPDATE with Joined Tables
This section provides a tutorial example on how to use UPDATE statements to update records in one or multiple tables with joined tables. 2022-10-01, ∼277🔥, 0💬

Character String Literal Evaluation Examples
This section provides tutorial examples on how character string literals are evaluated to values of different datatypes. 2022-10-01, ∼274🔥, 0💬

Convert Table to InnoDB Storage Engine
This section provides a tutorial example on how to convert a database table from MyISAM to InnoDB engine without taking the MySQL server offline. 2022-10-01, ∼274🔥, 0💬

"SHOW" - Show Server Information
This section provides a tutorial on how to use 'show' statements to display MySQL server information. 2022-10-01, ∼266🔥, 0💬

Table Column Types for Spatial Geometry Data
Describes 8 types of table column to store Spatial Geometry Data: GEOMETRY, POINT, LINESTRING, POLYGON, MULTIPOINT, MULTILINESTRING, MULTIPOLYGON, GEOMETRYCOLLECTION, GEOMETRYCOLLECTION. 2022-10-01, ∼265🔥, 0💬

Workaround on InnoDB "SELECT COUNT(*)" Problem
This section provides a tutorial example showing workarounds of the 'SELECT COUNT(*)' performance problem. count(fid) is much faster, if 'fid' is defined as a secondary index. 2022-10-01, ∼265🔥, 0💬

Server Performance Troubleshooting
This section provides some suggestions to troubleshoot server performance issues including checking total connections; listing running processes with their execution time; checking for locks; killing long running processes. 2022-10-01, ∼264🔥, 0💬

General Guidelines on Bulk Changes
This section provides a tutorial on how to install MySQL database server on macOS. 2022-10-01, ∼258🔥, 0💬

<< < … 2 3 4 5 6 7 8 >   ∑:175  Sort:Date

Android ASP Astrology Big5 Bitcoin Blowfish Built-in C# Calendar CD-DVD Cheminformatics Chinese Cryptography DES Email Encoding Ethereum Flash GB2312 General H Herong History HTML Java JavaScript JDBC JSP JVM Linux Molecule Movie Music MySQL Neural Network Perl PHP Physics PKI Publication Python REST SOAP Sorting Swing TV Series UML Unicode VBScript Web Web-Services Windows WSDL XML XMLPad XSD XSL-FO