Error map

recursion 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 · layer 5, Data

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Centre: this error. First ring: errors it is linked with (8). 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.

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recursion 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 l…GROUP 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)1136Maximum function nesting — Fatal error: Maximum function nesting level of '256' reached, aborting! (PHP)Maximum function ne…RangeError — RangeError: Maximum call stack size exceeded (JavaScript)RangeErrorStackOverflowError — java.lang.StackOverflowError (Java)StackOverflowErrorRecursionError — RecursionError: maximum recursion depth exceeded (Python)RecursionErroraggregate in WHERE — ERROR: aggregate functions are not allowed in WHERE (use HAVING) / MySQL 1111 Invalid use of group function (SQL)aggregate in WHEREStack overflow — .NET: Stack overflow. / Process is terminated due to StackOverflowException (.NET)Stack overflow1064 — MySQL ERROR 1064 (42000): You have an error in your SQL syntax (MySQL)1064ambiguous column — Column reference is ambiguous / Column 'id' in field list is ambiguous (MySQL 1052) (SQL)ambiguous columnSubquery 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…42601 — ERROR: syntax error at or near "x" (PostgreSQL)42601missing FROM-clause — ERROR: missing FROM-clause entry for table "x" (PostgreSQL)missing FROM-clauseSQLite syntax error — sqlite3.OperationalError: near "x": syntax error (SQL)SQLite syntax errorAllowed memory size exhausted — PHP Fatal error: Allowed memory size of X bytes exhausted (PHP)Allowed memory size…Call to undefined function — PHP Fatal error: Uncaught Error: Call to undefined function (PHP)Call to undefined f…Cannot redeclare — Fatal error: Cannot redeclare function foo() (previously declared in …) (PHP)Cannot redeclareToo many re-renders — Error: Too many re-renders. React limits the number of renders to prevent an infinite loop. (React)Too many re-rendersJsonException object cycle — JsonException: A possible object cycle was detected (.NET)JsonException objec…SIGSEGV — Segmentation fault (core dumped) (Linux)SIGSEGVOutOfMemoryError — java.lang.OutOfMemoryError: Java heap space (Java)OutOfMemoryErrorAttributeError — AttributeError: 'X' object has no attribute 'y' (Python)AttributeErrorConnectionRefusedError — ConnectionRefusedError: [Errno 111] Connection refused (Python)ConnectionRefusedEr…Event loop is closed — RuntimeError: Event loop is closed (Python)Event loop is closed102 — 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)1066Illegal instruction — Illegal instruction (core dumped) (SIGILL) (Linux)Illegal instruction0xC0000142 — The application was unable to start correctly (0xc0000142) (Windows)0xC0000142OutOfMemoryException — System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown (.NET)OutOfMemoryException

Directly related (8)

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.

Maximum function nestingPHP

Fatal error: Maximum function nesting level of '256' reached, aborting!

Recursion went deeper than Xdebug’s max_nesting_level allows (or PHP crashed with a segfault without Xdebug).

RangeErrorJavaScript

RangeError: Maximum call stack size exceeded

A function called itself (directly or indirectly) too many times — usually infinite recursion.

StackOverflowErrorJava

java.lang.StackOverflowError

The thread’s call stack overflowed — almost always unbounded recursion, sometimes a bidirectional toString/equals/JSON cycle.

RecursionErrorPython

RecursionError: maximum recursion depth exceeded

A function called itself (directly or indirectly) more than ~1000 times.

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.

Stack overflow.NET

.NET: Stack overflow. / Process is terminated due to StackOverflowException

Infinite or very deep recursion exhausted the thread’s stack; .NET can’t catch it and terminates the process.

Two steps away (22)

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.

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.

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.

42601PostgreSQL

ERROR: syntax error at or near "x"

PostgreSQL couldn’t parse the SQL; the token shown is where parsing failed.

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).

SQLite syntax errorSQL

sqlite3.OperationalError: near "x": syntax error

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

Allowed memory size exhaustedPHP

PHP Fatal error: Allowed memory size of X bytes exhausted

The script tried to use more memory than PHP’s `memory_limit` allows.

Call to undefined functionPHP

PHP Fatal error: Uncaught Error: Call to undefined function

PHP can’t find the function you called — usually a missing extension, missing include, or namespace issue.

Cannot redeclarePHP

Fatal error: Cannot redeclare function foo() (previously declared in …)

The same function (or class) was defined twice — usually a file included more than once.

Too many re-rendersReact

Error: Too many re-renders. React limits the number of renders to prevent an infinite loop.

A state update runs during render, which triggers another render, which updates state again — forever.

JsonException object cycle.NET

JsonException: A possible object cycle was detected

System.Text.Json found a reference loop (e.g. Order → Customer → Orders → …) while serialising, usually from EF Core navigation p…

SIGSEGVLinux

Segmentation fault (core dumped)

A program accessed memory it wasn’t allowed to, and the kernel killed it with SIGSEGV (exit code 139).

OutOfMemoryErrorJava

java.lang.OutOfMemoryError: Java heap space

The JVM ran out of heap memory and garbage collection couldn’t free enough.

AttributeErrorPython

AttributeError: 'X' object has no attribute 'y'

You accessed an attribute or method that doesn’t exist on that object type.

ConnectionRefusedErrorPython

ConnectionRefusedError: [Errno 111] Connection refused

Nothing is listening on the host/port Python tried to connect to.

Event loop is closedPython

RuntimeError: Event loop is closed

Async code tried to use an event loop that has already been shut down.

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.

Illegal instructionLinux

Illegal instruction (core dumped) (SIGILL)

The program used a CPU instruction your processor doesn’t support — typically AVX/AVX2 in prebuilt binaries (TensorFlow, MongoDB…

0xC0000142Windows

The application was unable to start correctly (0xc0000142)

A DLL the program loads failed to initialise — often after an update, with corrupt runtimes, or when a desktop heap/session limit…

OutOfMemoryException.NET

System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown

The process couldn’t allocate memory — large in-memory data, leaks, 32-bit process limits, or container memory limits.

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