Error map
207 SQL Server: Invalid column name 'x'. (Msg 207)
SQL · layer 5, Data
Centre: this error. First ring: errors it is linked with (12). 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.
Directly related (12)
ORA-00942: table or view does not exist
Oracle can’t see the table — it doesn’t exist, is in another schema, or you lack privileges on it.
SQL Server: Arithmetic overflow error converting expression to data type int. (Msg 8115)
A value or calculation exceeds the target data type’s range.
SQL Server: Invalid object name 'x'. (Msg 208)
The table/view doesn’t exist in the current database or schema.
SQL Server: Conversion failed when converting the varchar value 'x' to data type int. (Msg 245)
SQL Server tried to convert text to a number (often implicitly) and hit a non-numeric value.
SQL Server: Cannot insert explicit value for identity column in table 'x' when IDENTITY_INSERT is set to OFF.
An INSERT supplied a value for an IDENTITY column.
SQL Server: Execution Timeout Expired. The timeout period elapsed prior to completion of the operation or the server is not responding.
The command ran longer than the client’s CommandTimeout (default 30 seconds).
MongoDB: MongoServerError: Document failed validation (code 121)
The collection has a JSON Schema validator and the inserted/updated document doesn’t satisfy it.
ORA-00904: "X": invalid identifier
A column name in the statement doesn’t exist (or is misquoted).
sqlite3.OperationalError: no such column: x
SQLite can’t find the column — missing migration, typo, or a string written in double quotes.
SQL Server: The certificate chain was issued by an authority that is not trusted.
The client requires an encrypted connection and doesn’t trust SQL Server’s (often self-signed) certificate.
API Error: Request failed schema validation (must NOT have additional properties / Additional properties are not allowed)
The JSON body doesn’t match the endpoint’s schema — an unknown property, wrong nesting, or a missing required object.
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).
Two steps away (33)
MySQL ERROR 1146 (42S02): Table 'db.table' doesn't exist
The query references a table that MySQL can’t find in that database.
ORA-00001: unique constraint (SCHEMA.PK_X) violated
An insert/update duplicated a value in a unique or primary key constraint.
ORA-01017: invalid username/password; logon denied
Oracle rejected the credentials.
ERROR: numeric field overflow — A field with precision 5, scale 2 must round to an absolute value less than 10^3
A number doesn’t fit the column’s numeric(precision, scale) or integer range.
SQL Server: Login failed for user 'x'. (Error 18456)
SQL Server rejected the login — wrong password, wrong authentication mode, or a disabled/missing login.
SQL Server: Violation of PRIMARY KEY constraint 'x'. Cannot insert duplicate key in object 'y'. (Msg 2627)
An insert duplicated a primary key or unique constraint value.
PostgreSQL: ERROR: relation "x" does not exist
The table/view isn’t found — missing migration, wrong schema, or a case-sensitive quoted name.
ERROR: invalid input syntax for type integer: "abc"
A string couldn’t be converted to the column’s type (integer, numeric, boolean, date…).
SQL Server: String or binary data would be truncated in table 'x', column 'y'. (Msg 2628)
A value is longer than the column allows.
SQL Server: A network-related or instance-specific error occurred while establishing a connection to SQL Server. (provider: Named Pipes Provider, error: 40 / TCP Provider, error: 26)
The client couldn’t reach the SQL Server instance — wrong server name/instance, TCP disabled, firewall, or SQL Browser not runnin…
SQL Server: The INSERT statement conflicted with the FOREIGN KEY constraint 'x'. (Msg 547)
The row references a parent that doesn’t exist (or a DELETE would orphan children).
SQL Server: Incorrect syntax near 'x'. (Msg 102)
T-SQL couldn’t parse the statement near the shown token.
Lock wait timeout exceeded; try restarting transaction (MySQL 1205)
A query waited too long for a row lock held by another transaction and gave up.
ERROR: canceling statement due to statement timeout
A query ran longer than statement_timeout and PostgreSQL cancelled it.
API Gateway: {"message": "Endpoint request timed out"} (504 after 29 seconds)
The backend (usually Lambda) didn’t respond within API Gateway’s integration timeout (29 seconds by default for REST APIs).
HTTP 422 Unprocessable Content
The request is well-formed, but the data fails validation (e.g. invalid email, missing required field).
GraphQL: Cannot query field "x" on type "Y"
The query asks for a field that doesn’t exist in the server’s schema (or isn’t available on that type).
MySQL ERROR 1406: Data too long for column
The value is longer than the column allows (e.g. 300 characters into VARCHAR(255)), and strict mode rejects it instead of truncat…
ORA-12154: TNS:could not resolve the connect identifier specified
The Oracle client couldn’t find the alias in tnsnames.ora (or the naming method can’t resolve it).
ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
The listener is up but doesn’t know the service name you requested.
ORA-01400: cannot insert NULL into ("SCHEMA"."TABLE"."COLUMN")
A NULL was inserted into a NOT NULL column.
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…
sqlite3.IntegrityError: FOREIGN KEY constraint failed
An insert/update/delete violated a foreign key in SQLite (with PRAGMA foreign_keys=ON).
sqlite3.OperationalError: attempt to write a readonly database
The process can’t write to the SQLite file or its directory.
SSL: CERTIFICATE_VERIFY_FAILED / unable to get local issuer certificate
The client couldn’t verify the server’s TLS certificate chain, so it refused the HTTPS connection.
SSL error: tlsv1 alert protocol version / unsupported protocol / no protocols available
The client and server couldn’t agree on a TLS version or cipher, so the HTTPS handshake failed before any HTTP was exchanged.
ACM certificate stuck in Pending validation
ACM is waiting to see the DNS (or email) validation record — it wasn’t created, was created in the wrong DNS zone, or has a typo.
MySQL ERROR 1005 (HY000): Can't create table (errno: 150 "Foreign key constraint is incorrectly formed")
A foreign key definition is invalid — the referenced column’s type, index or charset doesn’t match.
MySQL ERROR 1007 (HY000): Can't create database 'x'; database exists
CREATE DATABASE ran for a database that already exists.
MySQL ERROR 1008 (HY000): Can't drop database 'x'; database doesn't exist
DROP DATABASE targeted a database that isn’t there.
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.
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.
MySQL ERROR 1067 (42000): Invalid default value for 'created_at'
A column’s DEFAULT isn’t allowed in the current SQL mode — classically '0000-00-00 00:00:00' with NO_ZERO_DATE.
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