ERROR: Search query returns too many rows CONTEXT: PL/pgSQL function inline_code_block line 15 at RAISE SQL state: P0001 In this example, the too_many_rows exception occurs because the select into statement returns more than one row while it is supposed to return one row. 3) Handling mu...
AI检测代码解析 CREATE [OR REPLACE] FUNCTION function_name [(parameter_name [IN | OUT | IN OUT] type [, ...])] RETURN return_datatype {IS | AS} BEGIN < function_body > END [function_name]; 1. 2. 3. 4. 5. 6. 7.
device_id int NOT NULL, gender varchar(14) NOT NULL, age int , university varchar(32) NOT NULL, province varchar(32) NOT null, gpa float ); INSERT INTO user_profile VALUES(1,2138,'male',21,'北京大学','BeiJing',3.4); INSERT
CREATE OR REPLACE FUNCTION exception_handling_example() RETURNS VOID AS $$ BEGIN -- 故意引发一个除零错误 PERFORM 1 / 0; EXCEPTION WHEN division_by_zero THEN RAISE NOTICE 'Caught a division by zero error!'; END; $$ LANGUAGE plpgsql; -- 调用函数 SELECT exception_handling_example(); 处理...
In the case of C locale, the collation function is the identity function: you compare exactly the same string of bytes that is present in the input. In more sophisticated locales, the collation function “normalizes” the input string into a string that can be repeatedly compared by just com...
Uses the SQL function akeys(). For example: >>> Dog.objects.create(name='Rufus', data={'toy': 'bone'}) >>> Dog.objects.create(name='Meg', data={'breed': 'collie', 'owner': 'Bob'}) >>> Dog.objects.filter(data__keys__overlap=['breed', 'toy']) <QuerySet [<Dog: Rufus...
exceptions50 XP Capturing a context stack100 XP When to add custom exception logging and recording100 XP Mixing it all together with debugging functions50 XP Creating named functions and declaring variables100 XP Structure of stacked diagnostics function100 XP Putting it all together100 XP Wrapping ...
@coderabbitai modularize this function. PR comments: Tag@coderabbitaiin a new PR comment to ask questions about the PR branch. For the best results, please provide a very specific query, as very limited context is provided in this mode. Examples: ...
To quickly select the desired database objects, you can use the search function. If there are changes made to the source databases or objects, clickin the upper right corner to update the objects to be synchronized. If an object name contains spaces, the spaces before and after the object ...
When an error occurs when executing a SQL statement SQLAPI++ library throws an exception of type SAException and SAException::ErrPos method returns error position in the SQL statement. In PostgreSQL server SAException::ErrPos method returns -1 because PostgreSQL does not support this function. ...