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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, ∼466🔥, 0💬

SQL History and Revisions
This section provides a quick introduction of SQL history and revisions. 3 major revisions have been published: SQL1 or SQl-86, SQL2 or SQL/92, and SQL3 or SQL:1999.
2022-10-01, ∼465🔥, 0💬

Use Index for Better Performance
This chapter provides tutorial notes on Index. Topics include introduction of index; using index to reduce searching time; creating composite indexes on value combinations of multiple columns.
2022-10-01, ∼463🔥, 0💬

Perl Programs and MySQL Servers
This chapter provides notes and tutorial examples on MySQL server and Perl programs. Topics include what software and modules are needed to run Perl programs to access MySQL servers; a sample Perl program that connects to a MySQL server.
2022-10-01, ∼462🔥, 0💬

FROM Clause of a SELECT Statement
A tutorial example is provided on how to use the FROM clause to provide tables, filters, aggregations and sorting order to SELECT statements.
2022-10-01, ∼461🔥, 0💬

Stored Procedure Parameters
This section provides tutorial examples on how to stored procedure parameters to pass data into procedures and return data back to calling statements.
2022-10-01, ∼461🔥, 0💬

INSERT INTO - Statement to Insert Records to Tables
A tutorial example is provided on how to use INSERT INTO statements to insert records into tables in different ways.
2022-10-01, ∼458🔥, 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, ∼454🔥, 0💬

PHP Programs and MySQL Server
This chapter provides notes and tutorial examples on MySQL server and PHP programs. Topics include configuring the PHP engine to use the MySQL extension library, commonly used MySQL functions, running SQL statements to create table, insert rows and fetch rows.
2022-10-01, ∼453🔥, 0💬

"INSERT INTO" Statements
Describes how to insert data rows with INSERT INTO statements.
2022-10-01, ∼453🔥, 0💬

Collations in Predicate Operations
This section provides tutorial examples on how collations are used in predicate operations by MySQL.
2022-10-01, ∼450🔥, 0💬

Configuring PHP for MySQL Server Access
A tutorial example is provided on how to configure the PHP engine for MySQL server connection access. Setting, extension=php_mysql.dll, needs to be turned on in the configuration file php.ini.
2022-10-01, ∼449🔥, 0💬

What Is InnoDB Storage Engine
This section describes the InnoDB storage engine, the default storage engine in the newer versions of MySQL server.
2022-10-01, ∼447🔥, 0💬

Impact of Binary Logging on INSERT
This section provides a tutorial example to demonstrate the performance impact of binary logging, about 50% of execution time reduction on INSERT and other data change statements.
2022-10-01, ∼447🔥, 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, ∼446🔥, 0💬

ALTER TABLE - Statement to Alter Table Structures
A tutorial example is provided on how to use ALTER TABLE statements to add, delete, modify, columns and indexes.
2022-10-01, ∼445🔥, 0💬

Getting Driver and Server Information
Describes how to get JDBC driver and database information through the DatabaseMetaData object.
2022-10-01, ∼444🔥, 0💬

Table Column Types for Date and Time Values
Describes 6 types of table columns to store date and time values: TIME, DATE, TIMESTAMP, TIME WITH TIME ZONE, TIMESTAMP WITH TIME ZONE, and INTERVAL.
2022-10-01, ∼444🔥, 0💬

Data Binary Representations
Describes how data of each datatype is represented in binary forms. SQL supports multiple binary representations of the same datatype using different storage sizes.
2022-10-01, ∼443🔥, 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, ∼443🔥, 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, ∼442🔥, 0💬

Table Column Types for Bit Strings
Describes 2 types of table columns to store bit strings: BIT and BIT VARYING.
2022-10-01, ∼441🔥, 0💬

Install MySQL Database Server on CentOS
This section provides a tutorial example on how to install MySQL 8.0 server on CentOS 8 systems using 'dnf/yum' as the package manager.
2022-10-01, ∼439🔥, 0💬

MySQL Status Variables for InnoDB Engine
This section describes some important MySQL status variables that represent statistic counts related the InnoDB storage engine.
2022-10-01, ∼435🔥, 0💬

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