Background information
The PolarDB O Edition does not support the Oracle exception type. If the Oracle exception
type is used, the syntax is incorrect:
ERROR: "utl_smtp.transient_error" is not a known exception
Oracle exception types can be overwritten in PolarDB O Edition. Modify the exception types based on the exception handling methods of the PolarDB O Edition.
New solution
Exception handling syntax:
[ <<label>> ]
[ DECLARE
declarations ]
BEGIN
statements
EXCEPTION
WHEN condition [ OR condition ... ] THEN
handler_statements
[ WHEN condition [ OR condition ... ] THEN
handler_statements
... ]
END;
- If no exception occurs, the program executes all
statements
normally. - If an EXCEPTION occurs within the
statements
, exceptions are redirected to the EXCEPTION section. The system matches the firstcondition
in the WHEN List. If the match is not successful, the exception continues to be thrown upwards.condition
can be any of the exception names in the appendix.
Note For more information about the exception types supported by PolarDB O Edition, see
Appendix.
Examples
Example of exception handling for division-by-zero errors:
INSERT INTO mytab(firstname, lastname) VALUES('Tom', 'Jones');
BEGIN
UPDATE mytab SET firstname = 'Joe' WHERE lastname = 'Jones';
x := x + 1;
y := x / 0;
EXCEPTION
WHEN division_by_zero THEN
RAISE NOTICE 'caught division_by_zero';
RETURN x;
END;
Appendix
Error Code | Condition Name |
---|---|
Class 00 - Successful Completion | |
00000 | successful_completion |
Class 01 - Warning | |
01000 | warning |
0100C | dynamic_result_sets_returned |
01008 | implicit_zero_bit_padding |
01003 | null_value_eliminated_in_set_function |
01007 | privilege_not_granted |
01006 | privilege_not_revoked |
01004 | string_data_right_truncation |
01P01 | deprecated_feature |
Class 02 - No Data (this is also a warning class per the SQL standard) | |
02000 | no_data |
02001 | no_additional_dynamic_result_sets_returned |
Class 03 - SQL Statement Not Yet Complete | |
03000 | sql_statement_not_yet_complete |
Class 08 - Connection Exception | |
08000 | connection_exception |
08003 | connection_does_not_exist |
08006 | connection_failure |
08001 | sqlclient_unable_to_establish_sqlconnection |
08004 | sqlserver_rejected_establishment_of_sqlconnection |
08007 | transaction_resolution_unknown |
08P01 | protocol_violation |
Class 09 - Triggered action exception | |
09000 | triggered_action_exception |
Class 0A - Feature not supported | |
0A000 | feature_not_supported |
Class 0B - Invalid transaction initiation | |
0B000 | invalid_transaction_initiation |
Class 0F - Locator exception | |
0F000 | locator_exception |
0F001 | invalid_locator_specification |
Class 0L - Invalid grantor | |
0L000 | invalid_grantor |
0LP01 | invalid_grant_operation |
Class 0P - Invalid role specification | |
0P000 | invalid_role_specification |
Class 0Z - Diagnostics exception | |
0Z000 | diagnostics_exception |
0Z002 | stacked_diagnostics_accessed_without_active_handler |
Class 20 - Case not found | |
20000 | case_not_found |
Class 21 - Cardinality violation | |
21000 | cardinality_violation |
Class 22 - Data exception | |
22000 | data_exception |
2202E | array_subscript_error |
22021 | character_not_in_repertoire |
22008 | datetime_field_overflow |
22012 | division_by_zero |
22005 | error_in_assignment |
2200B | escape_character_conflict |
22022 | indicator_overflow |
22015 | interval_field_overflow |
2201E | invalid_argument_for_logarithm |
22014 | invalid_argument_for_ntile_function |
22016 | invalid_argument_for_nth_value_function |
2201F | invalid_argument_for_power_function |
2201G | invalid_argument_for_width_bucket_function |
22018 | invalid_character_value_for_cast |
22007 | invalid_datetime_format |
22019 | invalid_escape_character |
2200D | invalid_escape_octet |
22025 | invalid_escape_sequence |
22P06 | nonstandard_use_of_escape_character |
22010 | invalid_indicator_parameter_value |
22023 | invalid_parameter_value |
22013 | invalid_preceding_or_following_size |
2201B | invalid_regular_expression |
2201W | invalid_row_count_in_limit_clause |
2201X | invalid_row_count_in_result_offset_clause |
2202H | invalid_tablesample_argument |
2202G | invalid_tablesample_repeat |
22009 | invalid_time_zone_displacement_value |
2200C | invalid_use_of_escape_character |
2200G | most_specific_type_mismatch |
22004 | null_value_not_allowed |
22002 | null_value_no_indicator_parameter |
22003 | numeric_value_out_of_range |
2200H | sequence_generator_limit_exceeded |
22026 | string_data_length_mismatch |
22001 | string_data_right_truncation |
22011 | substring_error |
22027 | trim_error |
22024 | unterminated_c_string |
2200F | zero_length_character_string |
22P01 | floating_point_exception |
22P02 | invalid_text_representation |
22P03 | invalid_binary_representation |
22P04 | bad_copy_file_format |
22P05 | untranslatable_character |
2200L | not_an_xml_document |
2200M | invalid_xml_document |
2200N | invalid_xml_content |
2200S | invalid_xml_comment |
2200T | invalid_xml_processing_instruction |
Class 23 - Integrity constraint violation | |
23000 | integrity_constraint_violation |
23001 | restrict_violation |
23502 | not_null_violation |
23503 | foreign_key_violation |
23505 | unique_violation |
23514 | check_violation |
23P01 | exclusion_violation |
Class 24 - Invalid cursor state | |
24000 | invalid_cursor_state |
Class 25 - Invalid transaction state | |
25000 | invalid_transaction_state |
25001 | active_sql_transaction |
25002 | branch_transaction_already_active |
25008 | held_cursor_requires_same_isolation_level |
25003 | inappropriate_access_mode_for_branch_transaction |
25004 | inappropriate_isolation_level_for_branch_transaction |
25005 | no_active_sql_transaction_for_branch_transaction |
25006 | read_only_sql_transaction |
25007 | schema_and_data_statement_mixing_not_supported |
25P01 | no_active_sql_transaction |
25P02 | in_failed_sql_transaction |
25P03 | idle_in_transaction_session_timeout |
Class 26 - Invalid SQL statement name | |
26000 | invalid_sql_statement_name |
Class 27 - Triggered data change violation | |
27000 | triggered_data_change_violation |
Class 28 - Invalid authorization specification | |
28000 | invalid_authorization_specification |
28P01 | invalid_password |
Class 2B - Dependent privilege descriptors still exist | |
2B000 | dependent_privilege_descriptors_still_exist |
2BP01 | dependent_objects_still_exist |
Class 2D - Invalid transaction termination | |
2D000 | invalid_transaction_termination |
Class 2F - SQL routine exception | |
2F000 | sql_routine_exception |
2F005 | function_executed_no_return_statement |
2F002 | modifying_sql_data_not_permitted |
2F003 | prohibited_sql_statement_attempted |
2F004 | reading_sql_data_not_permitted |
Class 34 - Invalid cursor name | |
34000 | invalid_cursor_name |
Class 38 - External routine exception | |
38000 | external_routine_exception |
38001 | containing_sql_not_permitted |
38002 | modifying_sql_data_not_permitted |
38003 | prohibited_sql_statement_attempted |
38004 | reading_sql_data_not_permitted |
Class 39 - External routine invocation exception | |
39000 | external_routine_invocation_exception |
39001 | invalid_sqlstate_returned |
39004 | null_value_not_allowed |
39P01 | trigger_protocol_violated |
39P02 | srf_protocol_violated |
39P03 | event_trigger_protocol_violated |
Class 3B - Savepoint exception | |
3B000 | savepoint_exception |
3B001 | invalid_savepoint_specification |
Class 3D - Invalid catalog name | |
3D000 | invalid_catalog_name |
Class 3F - Invalid schema name | |
3F000 | invalid_schema_name |
Class 40 - Transaction rollback | |
40000 | transaction_rollback |
40002 | transaction_integrity_constraint_violation |
40001 | serialization_failure |
40003 | statement_completion_unknown |
40P01 | deadlock_detected |
Class 42 - Syntax error or access rule violation | |
42000 | syntax_error_or_access_rule_violation |
42601 | syntax_error |
42501 | insufficient_privilege |
42846 | cannot_coerce |
42803 | grouping_error |
42P20 | windowing_error |
42P19 | invalid_recursion |
42830 | invalid_foreign_key |
42602 | invalid_name |
42622 | name_too_long |
42939 | reserved_name |
42804 | datatype_mismatch |
42P18 | indeterminate_datatype |
42P21 | collation_mismatch |
42P22 | indeterminate_collation |
42809 | wrong_object_type |
428C9 | generated_always |
42703 | undefined_column |
42883 | undefined_function |
42P01 | undefined_table |
42P02 | undefined_parameter |
42704 | undefined_object |
42701 | duplicate_column |
42P03 | duplicate_cursor |
42P04 | duplicate_database |
42723 | duplicate_function |
42P05 | duplicate_prepared_statement |
42P06 | duplicate_schema |
42P07 | duplicate_table |
42712 | duplicate_alias |
42710 | duplicate_object |
42702 | ambiguous_column |
42725 | ambiguous_function |
42P08 | ambiguous_parameter |
42P09 | ambiguous_alias |
42P10 | invalid_column_reference |
42611 | invalid_column_definition |
42P11 | invalid_cursor_definition |
42P12 | invalid_database_definition |
42P13 | invalid_function_definition |
42P14 | invalid_prepared_statement_definition |
42P15 | invalid_schema_definition |
42P16 | invalid_table_definition |
42P17 | invalid_object_definition |
Class 44 - With check option violation | |
44000 | with_check_option_violation |
Class 53 - Insufficient resources | |
53000 | insufficient_resources |
53100 | disk_full |
53200 | out_of_memory |
53300 | too_many_connections |
53400 | configuration_limit_exceeded |
Class 54 - Program limit exceeded | |
54000 | program_limit_exceeded |
54001 | statement_too_complex |
54011 | too_many_columns |
54023 | too_many_arguments |
Class 55 - Object not in prerequisite state | |
55000 | object_not_in_prerequisite_state |
55006 | object_in_use |
55P02 | cant_change_runtime_param |
55P03 | lock_not_available |
Class 57 - Operator intervention | |
57000 | operator_intervention |
57014 | query_canceled |
57P01 | admin_shutdown |
57P02 | crash_shutdown |
57P03 | cannot_connect_now |
57P04 | database_dropped |
Class 58 - System error. The errors that are external to PostgreSQL. | |
58000 | system_error |
58030 | io_error |
58P01 | undefined_file |
58P02 | duplicate_file |
Class 72 - Snapshot failure | |
72000 | snapshot_too_old |
Class F0 - Configuration file error | |
F0000 | config_file_error |
F0001 | lock_file_exists |
Class HV - Foreign data wrapper error (SQL/MED) | |
HV000 | fdw_error |
HV005 | fdw_column_name_not_found |
HV002 | fdw_dynamic_parameter_value_needed |
HV010 | fdw_function_sequence_error |
HV021 | fdw_inconsistent_descriptor_information |
HV024 | fdw_invalid_attribute_value |
HV007 | fdw_invalid_column_name |
HV008 | fdw_invalid_column_number |
HV004 | fdw_invalid_data_type |
HV006 | fdw_invalid_data_type_descriptors |
HV091 | fdw_invalid_descriptor_field_identifier |
HV00B | fdw_invalid_handle |
HV00C | fdw_invalid_option_index |
HV00D | fdw_invalid_option_name |
HV090 | fdw_invalid_string_length_or_buffer_length |
HV00A | fdw_invalid_string_format |
HV009 | fdw_invalid_use_of_null_pointer |
HV014 | fdw_too_many_handles |
HV001 | fdw_out_of_memory |
HV00P | fdw_no_schemas |
HV00J | fdw_option_name_not_found |
HV00K | fdw_reply_handle |
HV00Q | fdw_schema_not_found |
HV00R | fdw_table_not_found |
HV00L | fdw_unable_to_create_execution |
HV00M | fdw_unable_to_create_reply |
HV00N | fdw_unable_to_establish_connection |
Class P0 - PL/pgSQL error | |
P0000 | plpgsql_error |
P0001 | raise_exception |
P0002 | no_data_found |
P0003 | too_many_rows |
P0004 | assert_failure |
Class XX - Internal error | |
XX000 | internal_error |
XX001 | data_corrupted |
XX002 | index_corrupted |