如何判断2个字符串变量是否相等
1个回答
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SQL> set serveroutput on
SQL> set timing on
SQL> declare
2 v_1 varchar2(30) := '';
3 v_2 varchar2(30) := '';
4 begin
5 v_1 := 'go
SQL> set serveroutput on
SQL> set timing on
SQL> declare
2 v_1 varchar2(30) := '';
3 v_2 varchar2(30) := '';
4 begin
5 v_1 := 'go
SQL> set timing on
SQL> declare
2 v_1 varchar2(30) := '';
3 v_2 varchar2(30) := '';
4 begin
5 v_1 := 'go
SQL> set serveroutput on
SQL> set timing on
SQL> declare
2 v_1 varchar2(30) := '';
3 v_2 varchar2(30) := '';
4 begin
5 v_1 := 'go
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