corruption
database
Database Table Corruption / Needs Repair
Specific queries fail or admin shows 'One or more database tables are unavailable.'
Read the fix post-migration table-prefixDatabase – Wrong Table Prefix After Migration
wp-config.php table prefix doesn't match the actual tables present after a migration/restore.
Read the fix autoload performanceDatabase – Excessive Autoloaded Data Slowing Every Query
See also PS-05A - same root cause, filed here when the primary complaint is DB health rather than page speed.
Read the fix database db-connection resource-overloadDatabase – Too Many Connections / Connection Limit Reached
The site intermittently shows 'Error establishing a database connection' or MySQL 'Too many connections' while the database server is otherwise…
Read the fix