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Are there any error codes defined by PostgreSQL?
Note that some, but not all, of the error codes produced by PostgreSQL are defined by the SQL standard; some additional error codes for conditions not defined by the standard have been invented or borrowed from other databases.
How to create a user defined function in PostgreSQL?
Example. Create a function using a COMMIT statement in the body: postgres=# create or replace function func2(n int) returns void as $$ begin commit; end; $$ language ‘plpgsql’; CREATE FUNCTION Execute the function using a SELECT statement. This should should throw an error:
How do you report an error in PostgreSQL?
Specifies the error code (SQLSTATE) to report, either by condition name, as shown in Appendix A, or directly as a five-character SQLSTATE code. Supplies the name of a related object. This example will abort the transaction with the given error message and hint: These two examples show equivalent ways of setting the SQLSTATE:
What happens if the result is null in PostgreSQL?
If the result is false or null, then an ASSERT_FAILURE exception is raised. (If an error occurs while evaluating the condition, it is reported as a normal error.) If the optional message is provided, it is an expression whose result (if not null) replaces the default error message text “assertion failed”, should the condition fail.
What is the successful state code in PostgreSQL?
A successful state is indicated by the code 00000. The SQLSTATE codes are for the most part defined in the SQL standard. The PostgreSQL server natively supports SQLSTATE error codes; therefore a high degree of consistency can be achieved by using this error code scheme throughout all applications.
What does the code 00000 mean in SQL?
SQLSTATE has a hierarchical scheme: the first two characters indicate the general class of the condition, the last three characters indicate a subclass of the general condition. A successful state is indicated by the code 00000. The SQLSTATE codes are for the most part defined in the SQL standard.
What is the error code for PL / pgSQL?
(Note that PL/pgSQL does not recognize warning, as opposed to error, condition names; those are classes 00, 01, and 02.)