{ sql_statement | statement_block } 使用语句块定义的任何 Transact-SQL 语句或语句分组。 除非使用了语句块,IF否则或ELSE条件只能影响一个 Transact-SQL 语句的性能。 若要定义语句块,请使用流控制关键字BEGIN和END。 注解 IF...ELSE可以在批处理、存储过程和即席查询中使用构造。 在存储过程中使用此构造时,通...
Learn more about the Microsoft.SqlServer.Management.SqlParser.SqlCodeDom.SqlIfElseStatement in the Microsoft.SqlServer.Management.SqlParser.SqlCodeDom namespace.
syntaxsql IFboolean_expression{sql_statement|statement_block} [ELSE{sql_statement|statement_block} ] 引數 boolean_expression 傳回 或FALSE的TRUE表達式。如果boolean_expression包含SELECT語句,SELECT語句必須以括弧括住。 使用語句區塊所定義的任何有效 Transact-SQL 語句或語句群組。 若要定義語句區塊 (batch),請...
The statement that will be executed if the predicate evaluates false. Optional, may be null. C# Көшіру public Microsoft.SqlServer.TransactSql.ScriptDom.TSqlStatement ElseStatement { get; set; } Property Value TSqlStatement Applies to ӨнімНұсқалар Microsoft....
IF boolean_expression { sql_statement | statement_block } [ ELSE { sql_statement | statement_block } ] Arguments boolean_expression An expression that returns TRUE or FALSE. If the boolean_expression contains a SELECT statement, the SELECT statement must be enclosed in parentheses. { sql_state...
1、IF - ELSE Oracle数据库支持使用“IF - ELSE”进行简单的分支判断,语法结构和MSSQL Server的语法类似: IF { condition_1 } THEN { PL-SQL blocks A } ELSE { PL-SQL blocks B } END IF; 1. 2. 3. 4. 5. 条件语句放在 IF 和 THEN 之间,条件语句成立时执行语句块A,否则执行语...
syntaxsql IFboolean_expression{sql_statement|statement_block} [ELSE{sql_statement|statement_block} ] Arguments boolean_expression An expression that returnsTRUEorFALSE. If the Boolean expression contains aSELECTstatement, theSELECTstatement must be enclosed in parentheses. ...
syntaxsql Copier IF boolean_expression { sql_statement | statement_block } [ ELSE { sql_statement | statement_block } ] Arguments boolean_expression Expression qui renvoie TRUE ou FALSE. Si l’expression booléenne contient une SELECT instruction, l’instruction SELECT doit être placée entre...
So in the above each line is a condition and the output if it is TRUE but if not the IFS will go to the next line. NOTICE the last line uses TRUE because you always need a condition/result pair so to create a DEFAULT value if all else if false you need this TRUE (or you can ...
What i am trying to get is the number of elapased days as our start and end dates can be in the future, so there are 3 elements; else tell me the days between the start date and today +1 (to include today). Kindest Regards,...