SQL Server allows for only 10 levels of nesting in CASE expressions.The CASE expression can't be used to control the flow of execution of Transact-SQL statements, statement blocks, user-defined functions, and stored procedures. For a list of control-of-flow methods, see Control-of-Flow ...
SQL Server 2022 Multidimensional Expressions (MDX) Reference MDX Syntax Elements MDX Language Reference MDX Language Reference MDX Syntax Conventions MDX Statement Reference MDX Operator Reference MDX Function
Syntax for SQL Server, Azure SQL Database and Azure Synapse Analytics. syntaxsqlCopy -- Simple CASE expression:CASEinput_expressionWHENwhen_expressionTHENresult_expression[ ...n ] [ELSEelse_result_expression]END-- Searched CASE expression:CASEWHENBoolean_expressionTHENresult_expression[ ...n ] [ELS...
...UPDATE salary SET sex = IF(sex = 'm', 'f', 'm') 也可以利用条件语句,在搜索的时候,直接进行数据转换 select *,(CASE WHEN sex='1'...参考资料: 1、Mysql if case总结 2、Leetcode swap salary 3、select case when if 的一些用法 4、IF Syntax...
CASE selector WHEN selector_value_1 THEN statements_1 WHEN selector_value_1 THEN statement_2 ... ELSE else_statements END CASE;Code language: PostgreSQL SQL dialect and PL/pgSQL (pgsql) Let’s examine the syntax of the simple CASE statement in detail: 1) selector The selector is an ...
直接在dbForge查询窗口上运行简单的SQL语句 、 我想在dbForge sql窗口上运行SQL语句,但得到错误:select 's';错误: 1 You have anerror in your SQL syntax; check the manual that corresponds to your MySQL server version for the rightsyntax to use near &# 浏览0提问于2012-06-14得票数 0 回答已采纳...
CASE can be used in any statement or clause that allows a valid expression. For example, you can use CASE in statements such as SELECT, UPDATE, DELETE and SET, and in clauses such as select_list, IN, WHERE, ORDER BY, and HAVING. ...
CaseStatement(CaseClauseSyntax[]) 表示Case 或 Case Else 語句。 此語句一律為 CaseBlock 的 Begin。 如果這是 Case Else 語句,則 Kind=CaseElse,否則為 Kind=Case。 CaseStatement(SeparatedSyntaxList<CaseClauseSyntax>) 表示Case 或 Case Else 語句。 此語句一律為 CaseBlock 的 Begin...
supportsStatementPooling 方法(SQLServerDatabaseMetaData) supportsStoredProcedures 方法 (SQLServerDatabaseMetaData) supportsStoredFunctionsUsingCallSyntax 方法 (SQLServerDatabaseMetaData) supportsSubqueriesInComparisons 方法 (SQLServerDatabaseMetaData) supportsSubqueriesInExists 方法(SQLServerDatabaseMet...
in a single CASE expression. When you have multiple conditional expressions in your CASE clause, the first expression that evaluates to TRUE will be the code block that is evaluated by your TSQL statement. To better understand how the CASE expression works I will review the syntax of the CASE...