PostgreSQL "relation does not exist"
PostgreSQL cannot find the table or view name in your query.
ERROR: relation "users" does not exist
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Top 10 SQL Errors
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These are the most common SQL errors across major server styles.
PostgreSQL cannot find the table or view name in your query.
ERROR: relation "users" does not exist
PostgreSQL cannot find the column name you used.
ERROR: column "username" does not exist
PostgreSQL found SQL syntax it cannot understand.
ERROR: syntax error at or near "FROM"
MySQL cannot find the column in the table or query scope.
ERROR 1054 (42S22): Unknown column 'username' in 'field list'
MySQL found invalid SQL syntax.
ERROR 1064 (42000): You have an error in your SQL syntax
MySQL rejected a row because a UNIQUE or PRIMARY KEY value already exists.
ERROR 1062 (23000): Duplicate entry '1' for key 'PRIMARY'
SQL Server cannot find the table, view, or object name.
Msg 208, Level 16, State 1, Invalid object name 'users'.
SQL Server cannot find the column name in the query.
Msg 207, Level 16, State 1, Invalid column name 'username'.
Oracle cannot find the table or view, or your user does not have permission.
ORA-00942: table or view does not exist
Oracle cannot recognize a column name, alias, or identifier.
ORA-00904: invalid identifier