Fix ‘Cannot Load from mysql.proc’ in MySQL
Last updated: August 25, 2026. The mysql.proc error normally means the server binaries and MySQL system tables belong to different…
Category: SQL
How to Back Up and Restore a MySQL Database
Last updated: August 25, 2026. A logical MySQL backup is a portable SQL file containing the statements needed to recreate…
SQL Reference and Interactive Tutorial
Last updated: August 27, 2026. SQL retrieves and changes data in relational databases. Begin with SELECT, filtering, and sorting, then…
Determine the MySQL Version from the Command Line
Last updated: August 27, 2026. Use the client version command to identify the installed command-line program, and query the server…
SQL LIKE and NOT LIKE Conditions
Last updated: August 26, 2026. The SQL LIKE condition matches text using wildcard patterns. A percent sign matches zero or…
SQL DISTINCT
Last updated: August 27, 2026. SELECT DISTINCT removes duplicate result rows after the selected expressions have been evaluated. Syntax Example…
SQL SELECT Statement: Retrieve and Filter Data
Last updated: August 27, 2026. The SQL SELECT statement retrieves columns and rows from one or more tables. A clear…
SQL Tutorial Sample Database
Last updated: August 27, 2026. The SQL tutorial examples use a small set of related tables. The schema below keeps…
Microsoft Access Specifications and Limitations
Last updated: August 25, 2026. Microsoft Access has practical limits on database size, objects, fields, queries, and concurrent users. These…