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Scopes of System Variables: Global and Session
This section describes global and session scopes of system variables. GLOBAL and SESSION keywords can be used to separate system variable scopes. 2022-10-01, 176🔥, 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, 175🔥, 0💬

Data Literal Evaluation
Describes how data literals will be evaluated into values of particular datatypes based on the expression context. 2022-10-01, 175🔥, 0💬

Table Column Types for Approximate Numbers
Describes 3 types of table columns to store approximate numbers: FLOAT, REAL and DOUBLE PRECISION. 2022-10-01, 175🔥, 0💬

SELECT Statements
A tutorial example is provided on how to use SELECT statements to retrieve from database as multiple rows and multiple fields in each row. 2022-10-01, 175🔥, 0💬

Accessing MySQL Servers from Perl Programs
A tutorial example is provided on what programs and modules are needed to access MySQL servers from Perl programs, and how to install them. 2022-10-01, 174🔥, 0💬

"INSERT INTO" Statements
Describes how to insert data rows with INSERT INTO statements. 2022-10-01, 174🔥, 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, 174🔥, 0💬

Clustered Index Used by InnoDB Engine
This section describbes the Clustered Index data structure used by the InnoDB engine to stored indexed data rows of a table in MySQL server. 2022-10-01, 174🔥, 0💬

Hex String Literal Evaluation Examples
This section provides tutorial examples on how hex string literals are evaluated to values of different datatypes. 2022-10-01, 173🔥, 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, 173🔥, 0💬

Connection, Performance and Second Instance on Linux
This chapter provides introductions and tutorial examples about more advanced topics on running MySQL server on CentOS systems, including MySQL socket and TCP/IP connections; Opening firewall for MySQL connections; testing performance on INSERT statements; creating second server instance; moving dat... 2022-10-01, 172🔥, 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, 171🔥, 0💬

Table Column Types for JSON Documents
Describes 1 type of table column to store JSON documents: JSON. 2022-10-01, 171🔥, 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, 170🔥, 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, 170🔥, 0💬

Bulk Delete with a Simple Condition
This section provides a tutorial example on bulk deletion with a simple condition on a large table. 2022-10-01, 169🔥, 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, 169🔥, 0💬

Introduction of Datatype
This section provides quick introductions of datatypes supported by SQL: Character String, Bit String, Exact Number, Approximate Number, Date and Time. 2022-10-01, 168🔥, 0💬

Operations and Functions for Bit Strings
Describes operations and functions for bit strings, sequences of bit values, 0 and 1. 2022-10-01, 168🔥, 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, 168🔥, 0💬

MySQL Server File Locations on CentOS
This section provides a tutorial example on how to find and view MySQL Server file locations for MySQL 8.0 server on CentOS 8 systems. 2022-10-01, 168🔥, 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, 167🔥, 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, 166🔥, 0💬

<< < 1 2 3 4 5 6 7 8 > >>   ∑:175  Sort:Rank

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 Reference REST SOAP Sorting Swing TV Series UML Unicode VBScript Web Web-Services Windows WSDL XML XMLPad XSD XSL-FO