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[英]Oracle Function with table_name and date as input and Number as output
[英]Function with Table_name as input and returns a number in Oracle
我有一个函数,将table_name作为输入并返回一个数字。 该函数已正确编译,但是由于某些原因,当我尝试测试该函数时,它将引发错误-缺少关键字。
CREATE OR replace FUNCTION TEST_FUNCTION (name_table IN VARCHAR2) RETURN NUMBER
IS
rday NUMBER;
BEGIN
execute immediate
'select day_i into rday
FROM ' || name_table || '
WHERE day_i = 1 and rownum = 1';
return rday;
END TEST_FUNCTION;
这就是我测试它Select TEST_FUNCTION ('FDR_REP') from dual;
对于into子句try,立即执行的语法是不同的
CREATE OR replace FUNCTION TEST_FUNCTION (name_table IN VARCHAR2) RETURN NUMBER
IS
rday NUMBER;
BEGIN
execute immediate 'select day_i
FROM ' || name_table || '
WHERE day_i = 1 and rownum = 1' into rday;
return rday;
END TEST_FUNCTION;
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