具有 3 个输出的 Oracle SQL WHERE CASE IN 语句

Question

我有一小段代码在前端有一个参数输入。

输入的选项是yes、no & all 等同于：

yes = TRUE
no = FALSE
all = TRUE & FALSE

我的代码是：

SELECT c.ID, 
c.rep, 
c.cust
FROM mytable c 
WHERE '&input' IN (
CASE WHEN 'yes' THEN c.Acc = 'TRUE'
     WHEN 'no' THEN c.Acc = 'FALSE'
     WHEN 'all' THEN c.Acc IN ('TRUE', 'FALSE')
END)

但得到错误：

ORA-00920: 无效的关系运算符

Answer 1

使用OR

SELECT c.ID, 
    c.rep, 
    c.cust
FROM mytable c 
WHERE (&input = 'yes' and c.Acc = 'TRUE') OR
      (&input = 'no' and c.Acc = 'FALSE') OR
      (&input = 'all' and c.Acc IN ('TRUE', 'FALSE')) 

Answer 2

我想你想要：

SELECT c.ID, c.rep, c.cust
FROM mytable c 
WHERE (c.Acc =  = &input OR &input = 'all')