SQL

Special-purpose programming language designed for managing data in relational database management systems.


Why 'ERROR: out of memory' shows up?
Error: 'ERROR: deadlock detected'. What's causing it?
Getting 'ERROR: syntax error at or near "keyword"'. How to solve?
Why 'ERROR: division by zero' appears?
Facing 'ERROR: null value in column "column_name" violates not-null constraint'. Why?
'ERROR: column "column_name" does not exist' - What to do?
Why am I seeing 'ERROR: permission denied for relation table_name'?
Encountered 'ERROR: relation "table_name" does not exist'. Why?
Why am I getting the 'ERROR: duplicate key value violates unique constraint'?
I'm seeing 'ORA-03113: end-of-file on communication channel'. How to solve?
Error 'ORA-12560: TNS:protocol adapter error'. What does it mean?
Encountering 'ORA-01722: invalid number'. What is causing this?
Why 'ORA-28000: the account is locked' appears?
Error 'ORA-00001: unique constraint (constraint_name) violated' when inserting data. Why?
Seeing 'ORA-00600: internal error code, arguments: [...]' frequently. What's this?
How to handle 'ORA-12541: TNS:no listener'?
Facing 'ORA-00942: table or view does not exist'. What does it mean?
Encountered 'ORA-01017: invalid username/password; logon denied'. How to solve?
Why do I see the 'ORA-12154: TNS:could not resolve the connect identifier specified'?
How to tackle 'ERROR: column is not contained in an aggregate function or GROUP BY' in SQL?