在SQL语句中使用IF或CASE with multiple条件的作用是根据不同的条件执行不同的操作或返回不同的结果。这些条件可以是基于列的值、函数的结果、逻辑表达式等。 使用IF语句可以根据条件执行不同的操作。IF语句的基本语法如下: 代码语言:txt 复制 IF condition THEN statement1; ELSE statement2; END IF; 其中,conditio...
CASE With Multiple Conditions It is also possible to stack multiple conditions inside a singleCASEclause. Syntax SELECTcolumn1, column2, ...CASEWHENcondition1THENresult1WHENcondition2THENresult2-- Add more WHEN conditions and results as neededENDASalias_nameFROMtable_name; We can add as manyWHEN...
SQL Server 具有多个WHEN值的CASE命令的SQL语法按照您所做的那样制定长查询，并将其与主查询进行CROSS ...
sql(""" coalesce(get_json_object(col2,'$.value'), case whenfalse%' then 'false' when col2 like '%value\\u0022: true%' then 'true' end) as col2flag""") 浏览296提问于2021-09-22得票数 1 1回答 对forked repo的新拉入请求,显示已通过旧拉入请求合并的旧传出提交 、 我正面临这样...
https://linuxhint.com/sql-case-statement/ This tutorial mainly focuses on building a nested case statement in conjunction with the WHEN clauses. Nested CASE WHEN Statements In SQL, we can use a set of nested CASE WHEN statements in SQL to evaluate the multiple conditions and return a differe...
WHEN 1 THEN SELECT "One" WHEN 2 WHEN 3 THEN SELECT "Two or Three" ELSE SELECT "The number is outside range" CASE END; This gives a SQL syntax error. Thanks -- Jeff in Seattle Subject Written By Posted CASE with multiple consecutive WHEN(s) ...
1 case when 单独使用 CASE WHEN END 基本语法: CASE WHEN 情况1(类似于 A=‘1’、 A>‘1’、 A<‘1’、 A BETWEEN ‘1 ‘AND ‘3’ 、 A in (‘1’,‘2&rsq... 查看原文 字典表的替代解决方案 使用字典表时 替代解决方案一:使用sql的函数casewhen。如下cased.dict_typewhen‘1’ then ‘活动...
sql中的case when的功能是实现单列或者多列的条件统计，其实Pandas也可以实现的，比如万能的apply方法，...
"EXECUTE AT" with Dynamic Linked Server Name "explicit value must be specified for identity column in table" error in SQL 2000 "FROM clause have the same exposed names. Use correlation names to distinguish them" "No transaction is active." error when trying to send a transactional SQL statmen...
SQL CASE statement with Multiple THEN's I am wondering whether its possible to extract two seperate columns of data after a 'THEN' statement when using CASEFor exampleSelect country, CASE WHEN X>1 Then (code which allows 'A' in one column and 'B' in a second column)... END FROM ...