我无法在Interbase中进行以下SQL工作: 我收到以下错误:
第1行出错尝试执行未准备好的动态SQL语句
SQL:
SELECT CASE
WHEN kl='K' THEN (SUM(DB)-SUM(CR))
WHEN kl='L' THEN (SUM(CR)-SUM(DB))
END AS Saldo
FROM Table1
GROUP BY KL
以这种方式定义的Table1
:
Column name Data type
------------ ------------
KL varchar(1)
DB int
CR int
然而,它适用于SQL fiddle
以下也有效!
SELECT CASE
WHEN kl='K' THEN 1
WHEN kl='L' THEN 2
END as Saldo
FROM Table1
Group By KL
答案 0 :(得分:0)
发现它!
SELECT Sum(CASE
WHEN kl='K' THEN db
WHEN kl='L' THEN cr
END )
-Sum(CASE
WHEN kl='K' THEN CR
WHEN kl='L' THEN DB
END )
FROM Table1
Group By KL