PostgresDB 42830: Invalid Foreign Key

Foreign key constraint is invalid.

Identify the table and column causing the error by checking the error message details. Suppose the error indicates a problem with a foreign key between table_a and table_b.
Verify the existence of the referenced row in the parent table:
SELECT * FROM table_b WHERE id = <value_from_error_message>;
If the above query returns no rows, it indicates the foreign key reference is invalid because the referenced data does not exist. Check if the data was deleted or if there was a typo in the inserted/updated data.
Check for any recent changes in the database schema or data that might have caused this issue:
SELECT * FROM pg_stat_activity WHERE query LIKE '%ALTER TABLE%';
Ensure that any insert or update operation includes valid foreign key references. For inserts or updates, ensure the foreign key value exists in the referenced table before proceeding.
If necessary, insert or update the missing data in the parent table (table_b) so that the foreign key constraint is satisfied:
INSERT INTO table_b (id, ...) VALUES (<expected_value>, ...);
Re-attempt the failed operation after ensuring the foreign key value exists in the parent table.

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PostgresDB 23514: Check violation

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PostgresDB 23502: Not null violation

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The specified name is invalid.

PostgresDB 42830: Invalid Foreign Key

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Invalid use of recursion in a query.

PostgresDB 42846: Cannot Coerce

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PostgresDB 42P20: Windowing Error

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PostgresDB 42803: Grouping Error

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Invalid syntax in the SQL statement.

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Deadlock detected among transactions.

PostgresDB 40000: Transaction Rollback

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PostgresDB 3F000: Invalid Schema Name

The specified schema name is invalid.

PostgresDB 40003: Statement Completion Unknown

The result of the SQL statement is unknown.

PostgresDB 3D000: Invalid Catalog Name

The specified catalog name is invalid.

PostgresDB 40001: Serialization Failure

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The savepoint specification is invalid.

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PostgresDB 2F003: Prohibited SQL Statement Attempted

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General SQL routine exception.

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Transaction termination is invalid.

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PostgresDB 2B000: Dependent Privilege Descriptors Still Exist

Dependent privilege descriptors are still present.

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The specified SQL statement name is invalid.

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PostgresDB 27000: Triggered Data Change Violation

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Authorization specification is invalid.

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No active SQL transaction to execute.

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Mixing schema and data statements is not supported.

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No active SQL transaction for a branch transaction.

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Inappropriate isolation level for a branch transaction.

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Held cursor requires the same isolation level.

PostgresDB 25003: Inappropriate Access Mode for Branch Transaction

Inappropriate access mode for a branch transaction.

PostgresDB 25001: Active SQL Transaction

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PostgresDB 25002: Branch Transaction Already Active

A branch transaction is already active.

PostgresDB 22P04: Bad Copy File Format

Invalid format in a COPY file.

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An exclusion constraint was violated.

PostgresDB 23514: Check Violation

A CHECK constraint was violated.

PostgresDB 23503: Foreign Key Violation

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PostgresDB 23502: Not Null Violation

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PostgresDB 23000: Integrity Constraint Violation

A general integrity constraint violation occurred.

PostgresDB 2200T: Invalid XML Processing Instruction

The XML processing instruction is invalid.

PostgresDB 2200S: Invalid XML Comment

The XML comment is invalid.

PostgresDB 2200N: Invalid XML Content

Content within the XML is invalid.

PostgresDB 2200M: Invalid XML Document

The XML document is invalid.

PostgresDB 2200L: Not an XML Document

The provided data is not a valid XML document.

PostgresDB 22P05: Untranslatable Character

Character could not be translated.

PostgresDB 22P03: Invalid Binary Representation

Binary representation of a value is invalid.

PostgresDB 22P02: Invalid Text Representation

Text representation of a value is invalid.

PostgresDB 22P01: Floating Point Exception

Floating point operation caused an exception.

PostgresDB 2200F: Zero Length Character String

Character string has zero length.

PostgresDB 22024: Unterminated C String

C string was not properly terminated.

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