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1. 格式如下:
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create or replace function 函数名 return 返回值的类型 as
begin
函数定义
end 函数名;
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CREATE OR REPLACE function PLANFARM.shang_test1_fuc return number
as
retCount number;
begin
select count(*) into retCount from dual;
return retCount;
end;
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--------------------------执行调用过程--------------------------------------------------------------------------
