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我正在编写一些 oracle 存储过程,其中我们有条件逻辑,这些逻辑会影响我们正在使用的模式,我不确定如何在存储过程的 sql 中执行此操作。如果我正在使用准备好的语句,那么它很好,但是在我只是执行查询来说填充另一个变量的情况下,我不知道该怎么做。例如

PROCEDURE register (
    incustomer_ref  in  VARCHAR2,
    incustomer_type in  VARCHAR2,
    outreturn_code  out VARCHAR2
)
IS
    customer_schema varchar2(30);
         record_exists number(1);
BEGIN
    if incustomer_type='a' then
        customer_schema:='schemaA';
    elsif incustomer_type='b' then
        customer_schema:='schemaB';
    end if;


    --This type of command I cant get to work
    select count(*) into record_exists from **customer_schema**.customer_registration where customer_ref=incustomer_ref

    --but a  statement like this i know how to do
    if record_exists = 0 then
        execute immediate 'insert into '||customer_schema||'.customer_registration   
        values ('||incustomer_ref||','Y',sysdate)';
    end if;

任何人都可以对我在这里缺少的东西有所了解。
干杯

4

1 回答 1

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您也可以将 execute immediate 用于 select 语句:

    execute immediate    'select count(*)  from '|| customer_schema 
                      || '.customer_registration where customer_ref= :b1' 
     into record_exists using incustomer_ref;
于 2013-07-19T10:04:24.500 回答