The 25000 error code in PostgreSQL indicates an invalid_transaction_state. This error suggests that there is an issue with the current state of the transaction, such as attempting an operation that isn’t allowed within the current transaction block, or there are issues with transaction boundaries. Here are some examples and sample code to explain and cover …
The 23503 error code in PostgreSQL indicates a foreign_key_violation. This error happens when an INSERT or UPDATE operation violates a foreign key constraint, meaning that the foreign key value does not match any value in the referenced primary key or unique constraint of the related table. To fix this error, you need to ensure that …
The 2203F error code in PostgreSQL refers to the sql_json_scalar_required error. This error occurs when a JSON scalar value is required but not found. To diagnose and fix this error, you would typically ensure that the JSON data you’re working with contains scalar values where expected and that your queries are correctly formatted to handle …
The 2F003 error code in PostgreSQL corresponds to prohibited_sql_statement_attempted. This error occurs when an SQL statement is attempted that is not allowed in the current context, particularly within a function or trigger that is declared as SECURITY DEFINER and is attempting to execute an operation that is restricted. Here’s how to approach diagnosing and fixing …
The 26000 error code in PostgreSQL, known as invalid_sql_statement_name, typically occurs when a prepared statement with a specified name cannot be found during execution. This situation can arise when attempting to execute or deallocate a prepared statement that does not exist, either because it was never created, it has already been deallocated, or the session …
The 25006 error code in PostgreSQL refers to a read_only_sql_transaction error, which occurs when you attempt to perform a write operation (such as INSERT, UPDATE, DELETE, or DDL commands) within a transaction that is set to read-only mode. In read-only mode, the transaction is not allowed to modify any data. To diagnose and fix this …
The 25008 error code in PostgreSQL, held_cursor_requires_same_isolation_level, occurs when you try to use a cursor that was declared in a previous transaction with a different isolation level. Cursors in PostgreSQL can be declared as WITH HOLD, which allows them to continue to exist after a transaction commits, but they can only be used subsequently at …
The 23P01 error code in PostgreSQL corresponds to exclusion_violation, which indicates that an operation has violated an exclusion constraint. Exclusion constraints ensure that if any two rows are compared on the specified columns or expressions using the specified operators, not all of these comparisons will return true. To diagnose and fix a 23P01 exclusion_violation error, …
The 23001 error code in PostgreSQL, known as restrict_violation, indicates that an operation has violated a restriction defined in the database, typically associated with foreign key constraints. To diagnose and fix this issue, follow these steps: Remember, disabling constraints should be done with caution and usually only in a controlled environment, such as during a …
The 2F005 error code in PostgreSQL indicates that a function executed does not have a return statement, yet it is defined to return a value. In PostgreSQL, when you create a function that is supposed to return a value (other than void), you must have a RETURN statement that provides the value to be returned. …