Transfer SQL Server Logins while Preserving SIDs
Move SQL logins with their SIDs so restored database users remain mapped on the destination server.
Category: SQL
Find and Fix Orphaned Users in SQL Server
Identify database users whose login SID no longer matches and remap them safely after a restore or migration.
Get the Size of Every MySQL Database and Table
Last updated: August 29, 2026. MySQL reports table data and index allocation through INFORMATION_SCHEMA.TABLES. The following queries convert the byte…
Fix SQL Server ‘Insufficient Access Rights’ During Backup
Last updated: August 26, 2026. A SQL Server backup can fail because the login lacks database backup permission or because…
Transfer SQL Server Logins and Passwords Between Instances
Last updated: August 29, 2026. Database users and server logins are separate SQL Server objects. When a database moves to…
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…
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…
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…