Common SQL Errors and How to Fix Them
Browse all documented SQL errors with detailed explanations, root causes, and step-by-step fixes.
SQL syntax error: expected ';', got ',' at line 3
This error occurs when SQL parser encounters an unexpected character or token while parsing the SQL query. In this case,…
Incorrect syntax near the keyword 'FROM'. Expecting 'IDENTIFY', 'INSERT', 'PROCE
This error occurs when the SQL parser encounters a syntax that is not recognized or is invalid for the current statement…
Error: SQL command not properly ended at or near 'WHERE'
This error occurs when the SQL statement is not properly formatted or ended. It's often caused by a missing or misplaced…
ORA-00979: not a GROUP BY expression
This error occurs when a SELECT statement includes a column that is not included in the GROUP BY clause, or when a SELEC…
near 'FROM' at line 2: syntax error
This error occurs when the SQL parser encounters an invalid or unexpected syntax in the query. In this case, the error i…
Missing comma between the 'SELECT' and 'FROM' clauses in the SQL query
This error occurs when the SQL query is missing a comma between two clauses, causing the database to interpret the query…
Error executing query: Window function requires ORDER BY clause with a column of
This error occurs when a window function in SQL is used without a valid ORDER BY clause. The ORDER BY clause is required…
Incorrect syntax near 'JOIN'. Expecting 'FROM' keyword
This error occurs when the SQL parser encounters a JOIN operation without a preceding FROM keyword, violating the SQL sy…
SQL syntax error: Unexpected keyword GROUP BY near 'date' in statement at or aro
This error occurs when the SQL syntax is incorrect, and the parser is unable to understand the query.…
Cannot insert duplicate key row in table 'orders' with unique index 'PK_orders_i
This error occurs when you try to insert a new row into a table that contains a unique index, such as a primary key, and…
near ";" at character 12: unexpected token: ";". Expected "AS".
This error occurs when SQL parser encounters a syntax that it does not expect, in this case, an unexpected semicolon (";…
SQLSTATE[22P02]: Invalid text representation: 7 ERROR: invalid input syntax for
This error occurs when you try to store a non-numeric value in a column that is defined as an integer. In this case, the…
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