sql case where-clause case-when 我需要排除下表中的最后一行: dim11 dim12 amount1 NULL 1 200 NULL 2 300 Y 3 100 N 3 100 我想得到amount1的和,其中dim12在(1,2,3)中,但只有dim12=3有dim11='Y'而不是in='N'。 SELECT SUM(AMOUNT1) FROM table1 WHERE dim12 in (1,2,3) 摘要:我...
在where里面,就会发生很神奇的事情...TABLE(Col1 int) INSERT @t SELECT 0 UNION ALL SELECT 1 UNION ALL SELECT 2 --然后随机查一行 SELECT * FROM @t WHERE...直到发现我不是一个人: https://stackoverflow.com/questions/38498513/odd-sql-server-tsql-query-results-with-newid-in-the-where-clause...
OR ） CASE WHEN sex = ‘1’ THEN ‘男’ WHEN sex = ‘2’ THEN ‘女’ ELSE ‘其他’ END...
通常在WHERE子句中使用常规AND/OR而不是caseexpressions会更好。
oracle 在查询的where子句中使用“case when”字符串 但是，忘记case表达式，只使用布尔逻辑会更简单：...
如：1.oxford dictionary onlinemore examples introducing a clause with 'when ' can be found but it is hard to find an example with 'where' after 'occasion'.2.it is the same with longman dictionary"under these conditions, where we see so much uncertainty with leadership succession,...
group, but for the other records in the group, Clinno is 0. I need to update the table so that all records in all groups have the proper Clinno value in all records in the group, not just the first record. How can I construct a "update,case,when,where clause" to get this done...
1. In “I enjoyed my stay in the library where I could read various books I was interested in”, the Adjectival Clause “where I could read various books I was interested in” deals with a place and modifies the Noun “library”. 2. In “I enjoyed my stay in the library when I ...
记住，CASE关键字是用于表达式的。它产生一个值;它不像if语句那样选择运行哪段代码。我知道这个编辑现在...
I think I need the condition in the CASE expression to be qualified with a WHERE clause or perhaps a nested CASE but can't get it to work. 我认为我需要CASE表达式中的条件使用WHERE子句或嵌套CASE进行限定,但无法使其工作。 Real Code