[英]How to select while comparing two columns from the same table in sql
CREATE VIEW mainT
AS SELECT transactionId AS accountId, glbalance AS debit
IF(totalDebit > totalCredit), glbalance as Credit IF(totalCredit > totalDebit)
FROM `trialbalanceView`
是否可以在SQL中生成这种查询? 请任何帮助,我们将不胜感激。
你想要一个CASE
声明似乎......
CREATE VIEW mainT
AS
SELECT
transactionId AS accountId,
glbalance AS debit,
case when totalDebit > totalCredit then glbalance else null end as Debit,
case when totalCredit > totalDebit then glbalance else null end as Credit
FROM trialbalanceView
我相信你所寻找的东西类似于下面的东西。 我假设您的问题与基于逻辑操作的条件列值有关。 如果该假设不正确,请提供更多详细信息,说明需要通过示例和基表数据解决的问题究竟是什么。
CREATE VIEW mainT
AS
SELECT transactionId AS accountId,
CASE WHEN totalDebit > totalCredit
THEN glbalance
ELSE null AS debit,
CASE WHEN totalDebit < totalCredit
THEN glbalance
ELSE null AS credit
FROM trialbalanceView
谢谢,K
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