To do this, ensure thesql_transpilerparameter ison(it'soffby default). When a function in thewhereclause is transpiled, you can see the case expression instead of the function in the predicate section of the pla
The CASE statement can be used in the following versions of Oracle/PLSQL: Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i Example The CASE statement can be used in Oracle/PLSQL. You could use the CASE statement in a SQL statement as follows: (includes theexpressionclause) SELECT table_name...
原文提到先进行GROUP BY再进行SELECT的方式在一些诸如Oracle、DB2、SQL Server 等数据库里是会报错的，在...
CASE式を使用すると、プロシージャを起動せずに、SQL文でIF...THEN...ELSE論理を使用できます。構文は次のとおりです。 単純CASE式では、Oracle Databaseは、exprとcomparison_exprが一致する最初のWHEN...THENの組合せを検索し、return_exprを戻します。WHEN...THENの組合せが条件に一致せず、ELSE句...
使用CASE条件可以在SQL查询中根据特定条件过滤双倍数据。CASE条件是一种逻辑表达式,它根据条件的真假返回不同的结果。 在使用CASE条件过滤双倍数据时,可以按照以下步骤进行操作: 1. 编写...
附录:参考资料 1.Oracle CASE WHEN 用法介绍 2.https://dba.stackexchange.com/questions/1170/oracle-sql-case-in-a-where-clause 本文参与 腾讯云自媒体同步曝光计划,分享自作者个人站点/博客。 原始发表:2017-12-29 ,如有侵权请联系 cloudcommunity@tencent.com 删除 前往查看 其他 ...
You can have up to 255 comparisons in acasestatement. Each WHEN ... THEN clause is considered 2 comparisons. 译:在case条件中最多可以有255个比较,每个WHEN ... THEN子被认为两次比较。 For Example: You could use thecasestatement in an SQL statement as follows: ...
In this example, if the deptno column has a 10 in it, the SQL query will return the value accounting rather than the number 10. If the deptno is not 10, 20, 30, or 40, then the CASE statement will fall through to the ELSE clause, which will return unassigned. Note that with a ...
FROM … PIVOT [XML] ( pivot_clause pivot_for_clause pivot_in_clau...Oracle行列转换 Oracle行列转换 DDL 准备数据 产品 季度 销售额 TV Q1 100 TV Q2 200 。。。 转换为如下格式 产品 Q1 Q2 Q3 TV 100 200 300 MNT 50 150 200 SQL......
OracleCASEexpression allows you to addif-elselogic to SQL statements without calling aprocedure. TheCASEexpression evaluates a list of conditions and returns one of the multiple possible results. You can use aCASEexpression in any statement or clause that accepts a valid expression. For example, ...