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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, ∼236🔥, 0💬

Table Column Types for Byte Strings
Describes 2 types of table columns to store Byte strings: BINARY and VARBINARY.
2022-10-01, ∼236🔥, 0💬

What Are Storage Engines
This section describes MySQL storage engines, which implement different strategies on how data is stored, updated and retrieved in storage devices.
2022-10-01, ∼236🔥, 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, ∼235🔥, 0💬

Performance of Inserting Integers to MySQL Database
This section provides a tutorial example on how to test the performance of inserting integers into MySQL server database using PHP 'mysqli' functions. MySQL server is 100 times slower on my CentOS computer and macOS computer.
2022-10-01, ∼234🔥, 0💬

Delete Records That Are Not Referenced
This section provides a tutorial example on bulk deletion for records that are not referenced by another table.
2022-10-01, ∼234🔥, 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, ∼233🔥, 0💬

Arithmetic Operations
This section provides a list of numeric operations supported by SQL and some examples.
2022-10-01, ∼230🔥, 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, ∼228🔥, 0💬

"SHOW" - Show Server Information
This section provides a tutorial on how to use 'show' statements to display MySQL server information.
2022-10-01, ∼227🔥, 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, ∼223🔥, 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, ∼223🔥, 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, ∼222🔥, 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, ∼222🔥, 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, ∼221🔥, 0💬

"SHOW STATUS ..." - Server Status Variables
This section describes Server Status Variables, which are counters used by MySQL server to provide statistics information about its running status.
2022-10-01, ∼221🔥, 0💬

Date and Time Operations
This section provides a list of date and time operations supported by SQL and some examples.
2022-10-01, ∼218🔥, 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, ∼212🔥, 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, ∼211🔥, 0💬

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, ∼209🔥, 0💬

Primary Key Index on InnoDB Table
This section provides a tutorial example on how to create an InnoDB table with a single index page, and see relations between the index page and table data pages.
2022-10-01, ∼207🔥, 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, ∼203🔥, 0💬

Install MySQL Database Server on macOS
This section provides a tutorial on how to install MySQL database server on macOS.
2022-10-01, ∼202🔥, 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, ∼202🔥, 0💬

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