sql if else的相關文章
sql if else的相關公司資訊
sql if else的相關商品

SQL Server: IF EXISTS ; ELSE - Stack Overflow
瀏覽:839
日期:2025-04-24
I have a tableA: ID value 1 100 2 101 2 444 3 501 Also TableB ID Code 1 2 Now I want to populate col = code of table B if there exists ID = 2 in tableA. for multiple values , get max value. else populate it with '123'. Now here is what I used: if exists (...看更多