最后一步是执行我们编写的if else if语句。使用以下代码执行if else if语句: DELIMITER//CREATEPROCEDUREexample_procedure()BEGINIFcondition1THENstatement1;ELSEIFcondition2THENstatement2;ELSEIFcondition3THENstatement3;ELSEstatement4;ENDIF;END//DELIMITER;CALLexample_procedure(); 1. 2. 3. 4. 5. 6. 7. 8...
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In these examples, we decide as per the conditions. For example, if I get a bonus then only I will go for an international vacation else I will go for domestic vacations. We need to incorporate these conditions-based decisions in programming logic as well. SQL Server provides the capability...
packagecn.juwatech.sql.example;importjava.sql.*;publicclassSQLIfStatementExample{publicstaticvoidmain(String[] args){Stringurl="jdbc:mysql://localhost:3306/mydatabase";Stringuser="username";Stringpassword="password";try(Connectionconn=DriverManager.getConnection(url, user, password);CallableStatementstmt...
是一种在数据库中执行条件判断的操作,它允许根据特定条件执行不同的SQL语句。SQL事务是一组SQL操作的集合,要么全部执行成功,要么全部回滚,以保证数据的一致性和完整性。 在SQL中,可以使用if语...
IF 1 = 2 PRINT 'Boolean_expression is true.' ELSE PRINT 'Boolean_expression is false.' ; GO B. Example using a query The following example executes a query as part of the Boolean expression. Because there are 10 bikes in the Product table that meet the WHERE clause, the first print...
IF 1 = 1 PRINT 'Boolean expression is true.' ELSE PRINT 'Boolean expression is false.'; The following example has a Boolean expression (1 = 2) that is false, and therefore prints the second statement.SQL העתק IF 1 = 2 PRINT 'Boolean expression is true.' ELSE PRINT 'Bool...
IF tests can be nested after another IF or following an ELSE. The limit to the number of nested levels depends on available memory. Examples The following example uses IF…ELSE with output from the uspGetList stored procedure. This stored procedure is defined in Create a Stored Procedure. In...
今天,写存储过程时写成了:if...then...else if...else...end if.能编译通过,但是有问题,后来实在是找不到问题怀疑写错了这个语句,后来在网上查了一下,结果不是else if 而是elsif.改过来后就正常了。 Oracle/PLSQL: IF-THEN-ELSE Statement There...
IF 1 = 1 PRINT 'Boolean expression is true.' ELSE PRINT 'Boolean expression is false.'; The following example has a Boolean expression (1 = 2) that is false, and therefore prints the second statement. SQL Copy IF 1 = 2 PRINT 'Boolean expression is true.' ELSE PRINT 'Boolean expre...