sql declare cursor

then close C;end if;end;Create a function--Create a function that can remove the space of the string create or Replace function Noblank1 (str varchar) return Varcharisbeginreturn replace (str, ', '); end ;--Call function Select Noblank1 (' DFA D s a ') from dual;Create a Trigger--Creating a trigger create or replace trigger Stu_update_tribefore update on Studentfor each rowbegindbms_output.put_line (' A record has been updated, the original data is ' | |:o ld.age| | ' The new data is ' | |:new.

1. If the table does not have an auto-growing identity column (int) using the temp tableSELECT IDENTITY (int) NewID,.. Into #tmp from youtable2. Tables with identity columns using table variablesINSERT into @tmpTableSELECT ..., NewID= (SELECT COUNT (*) from youtable b WHERE b.aidWhen you have a continuous newid from 1 to ~d, you can use loops to manipulate each record.This newid you can do when it is pointer identification.If you do not understand ~ ~ View the following stored procedures/** * *