Error map

42601 ERROR: syntax error at or near "x"

PostgreSQL · layer 5, Data

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Centre: this error. First ring: errors it is linked with (7). Outer ring: what those are linked with. Colours show the layer of a request each error belongs to. Click any dot to re-centre the map on it; hover to follow its connections. The centre dot opens the error page.

4 · Application & API 5 · Data
42601 — ERROR: syntax error at or near "x" (PostgreSQL)42601GROUP BY — Column must appear in the GROUP BY clause / isn't in GROUP BY (MySQL 1055 only_full_group_by) (SQL)GROUP BY1136 — MySQL ERROR 1136 (21S01): Column count doesn't match value count at row 1 (SQL)1136ambiguous column — Column reference is ambiguous / Column 'id' in field list is ambiguous (MySQL 1052) (SQL)ambiguous columnmissing FROM-clause — ERROR: missing FROM-clause entry for table "x" (PostgreSQL)missing FROM-clause42703 — PostgreSQL: ERROR: column "x" does not exist (PostgreSQL)427031064 — MySQL ERROR 1064 (42000): You have an error in your SQL syntax (MySQL)1064aggregate in WHERE — ERROR: aggregate functions are not allowed in WHERE (use HAVING) / MySQL 1111 Invalid use of group function (SQL)aggregate in WHERESubquery returns more than 1 row — Subquery returns more than 1 row (MySQL 1242) / more than one row returned by a subquery used as an expression (SQL)Subquery returns mo…Division by zero — SQL Error: division by zero / Divide by zero error encountered (SQL)Division by zeroSQLite syntax error — sqlite3.OperationalError: near "x": syntax error (SQL)SQLite syntax error102 — SQL Server: Incorrect syntax near 'x'. (Msg 102) (SQL)102ORA-00933 — ORA-00933: SQL command not properly ended (SQL)ORA-009331066 — MySQL ERROR 1066 (42000): Not unique table/alias: 'x' (SQL)10661054 — MySQL ERROR 1054 (42S22): Unknown column in 'field list' (MySQL)1054window in WHERE — ERROR: window functions are not allowed in WHERE (SQL)window in WHERE1248 — MySQL ERROR 1248 (42000): Every derived table must have its own alias (SQL)12481267 — MySQL ERROR 1267 (HY000): Illegal mix of collations (utf8mb4_unicode_ci,IMPLICIT) and (utf8mb4_0900_ai_ci,IMPLICIT) for operation '=' (SQL)126742P01 — PostgreSQL: ERROR: relation "x" does not exist (PostgreSQL)42P0123505 — PostgreSQL: ERROR: duplicate key value violates unique constraint (PostgreSQL)2350542701 — ERROR: column "x" of relation "y" already exists (PostgreSQL)427011146 — MySQL ERROR 1146 (42S02): Table 'db.table' doesn't exist (MySQL)11461366 — MySQL ERROR 1366: Incorrect string value: '\xF0\x9F\x98\x80' for column (MySQL)1366mysqli_sql_exception — Fatal error: Uncaught mysqli_sql_exception (PHP)mysqli_sql_exception1222 — MySQL ERROR 1222 (21000): The used SELECT statements have a different number of columns (SQL)1222recursion limit — Msg 530: The statement terminated. The maximum recursion 100 has been exhausted before statement completion. / MySQL 3636 Recursive query aborted after 1001 iterations (SQL)recursion limit

Directly related (7)

GROUP BYSQL

Column must appear in the GROUP BY clause / isn't in GROUP BY (MySQL 1055 only_full_group_by)

You selected a column that is neither grouped nor aggregated, so the result would be ambiguous.

1136SQL

MySQL ERROR 1136 (21S01): Column count doesn't match value count at row 1

An INSERT supplies a different number of values than columns.

ambiguous columnSQL

Column reference is ambiguous / Column 'id' in field list is ambiguous (MySQL 1052)

A column name exists in more than one joined table, so the database doesn’t know which one you mean.

missing FROM-clausePostgreSQL

ERROR: missing FROM-clause entry for table "x"

The query references a table/alias that isn’t in the FROM clause (or uses the wrong alias).

42703PostgreSQL

PostgreSQL: ERROR: column "x" does not exist

PostgreSQL can’t find the column — a missing migration, a case-sensitive quoted name, or a string literal written in double quote…

1064MySQL

MySQL ERROR 1064 (42000): You have an error in your SQL syntax

MySQL couldn’t parse the query. The text after “near” shows where parsing failed.

aggregate in WHERESQL

ERROR: aggregate functions are not allowed in WHERE (use HAVING) / MySQL 1111 Invalid use of group function

An aggregate (SUM, COUNT, AVG) was used in WHERE, which filters rows before grouping.

Two steps away (18)

Subquery returns more than 1 rowSQL

Subquery returns more than 1 row (MySQL 1242) / more than one row returned by a subquery used as an expression

A subquery used where a single value is expected (`= (SELECT …)`) returned several rows.

Division by zeroSQL

SQL Error: division by zero / Divide by zero error encountered

An expression divided by a value that was 0 for at least one row.

SQLite syntax errorSQL

sqlite3.OperationalError: near "x": syntax error

SQLite couldn’t parse the statement; the token after “near” is where it stopped.

102SQL

SQL Server: Incorrect syntax near 'x'. (Msg 102)

T-SQL couldn’t parse the statement near the shown token.

ORA-00933SQL

ORA-00933: SQL command not properly ended

Oracle found extra clauses or syntax it doesn’t support at the end of a statement.

1066SQL

MySQL ERROR 1066 (42000): Not unique table/alias: 'x'

The same table or alias appears twice in a FROM/JOIN without distinct aliases.

1054MySQL

MySQL ERROR 1054 (42S22): Unknown column in 'field list'

The query references a column that doesn’t exist in the table (or an unquoted string being read as a column).

window in WHERESQL

ERROR: window functions are not allowed in WHERE

A window function (ROW_NUMBER, RANK, LAG) was filtered directly in WHERE.

1248SQL

MySQL ERROR 1248 (42000): Every derived table must have its own alias

A subquery in FROM wasn’t given an alias.

1267SQL

MySQL ERROR 1267 (HY000): Illegal mix of collations (utf8mb4_unicode_ci,IMPLICIT) and (utf8mb4_0900_ai_ci,IMPLICIT) for operation '='

Two strings with different collations were compared or joined.

42P01PostgreSQL

PostgreSQL: ERROR: relation "x" does not exist

The table/view isn’t found — missing migration, wrong schema, or a case-sensitive quoted name.

23505PostgreSQL

PostgreSQL: ERROR: duplicate key value violates unique constraint

An INSERT/UPDATE would create a duplicate in a UNIQUE or PRIMARY KEY column — or the id sequence is behind the existing data.

42701PostgreSQL

ERROR: column "x" of relation "y" already exists

ALTER TABLE ADD COLUMN for a column that’s already there.

1146MySQL

MySQL ERROR 1146 (42S02): Table 'db.table' doesn't exist

The query references a table that MySQL can’t find in that database.

1366MySQL

MySQL ERROR 1366: Incorrect string value: '\xF0\x9F\x98\x80' for column

The text contains characters (usually emoji) that the column’s character set can’t store — the column or connection is `utf8`/`ut…

mysqli_sql_exceptionPHP

Fatal error: Uncaught mysqli_sql_exception

A MySQLi query or connection failed; since PHP 8.1 MySQLi throws exceptions by default.

1222SQL

MySQL ERROR 1222 (21000): The used SELECT statements have a different number of columns

The SELECTs combined with UNION return different numbers of columns.

recursion limitSQL

Msg 530: The statement terminated. The maximum recursion 100 has been exhausted before statement completion. / MySQL 3636 Recursive query aborted after 1001 iterations

A recursive CTE exceeded the database’s recursion limit — often an infinite loop in hierarchical data.

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