How to diagnose and fix the 40002 transaction_integrity_constraint_violation error code in Postgres. 

The 40002 error code in PostgreSQL stands for transaction_integrity_constraint_violation. This error occurs when a transaction violates a database constraint, such as a foreign key constraint, a unique constraint, or a check constraint, during its execution. This violation can happen due to an insert, update, or delete operation that conflicts with the rules defined by the …

Read more

How to diagnose and fix the 39001 invalid_sqlstate_returned error code in Postgres.

The 39001 error code in PostgreSQL, which stands for invalid_sqlstate_returned, is typically encountered when a function or trigger programmed in an external language (such as PL/Python, PL/Perl, etc.) returns an invalid SQLSTATE code. SQLSTATE codes are standardized error codes that are used to indicate the success or failure of SQL operations. To diagnose and fix …

Read more

How to diagnose and fix the 38001 containing_sql_not_permitted error code in Postgres. 

The 38001 error code in PostgreSQL, which stands for containing_sql_not_permitted, typically occurs when you’re working with external routines or functions, such as those written in PL/Python or PL/Perl, and you attempt to execute an SQL command that is not allowed within that context. This is a security restriction to prevent unauthorized operations from within these …

Read more

How to diagnose and fix the 42P20 windowing_error error code in Postgres. 

The 42P20 error code in PostgreSQL, known as windowing_error, is associated with issues related to window functions in SQL queries. Window functions are used to perform calculations across sets of rows that are related to the current row. Common problems that can lead to a windowing_error include incorrect window function usage, improper frame specification, or …

Read more

How to diagnose and fix the 42000 syntax_error_or_access_rule_violation error code in Postgres.

The 42000 error code in PostgreSQL, known as syntax_error_or_access_rule_violation, is a broad class of errors that encompasses various issues related to incorrect syntax in SQL statements or violations of database access rules. To diagnose and fix this error, follow these steps: Here are some examples and sample code to illustrate potential scenarios: To fix this, …

Read more

How to diagnose and fix the 39P03 event_trigger_protocol_violated error code in Postgres.

The 39P03 error code in PostgreSQL, known as event_trigger_protocol_violated, indicates that there has been a protocol violation with an event trigger. This error typically occurs when an event trigger function does not follow the correct protocol for executing commands or accessing data. To diagnose and fix this error, consider the following steps: Here are some …

Read more

How to diagnose and fix the 38000 external_routine_exception error code in Postgres.

The 38000 error code in PostgreSQL, known as external_routine_exception, indicates that an exception has occurred in an external routine. This could be a result of various issues, such as problems loading an external library or an external function not being found. To diagnose and fix this error, you should consider the following steps: Here are …

Read more