--表的匹配:使用 IN 谓词SELECTcourse_name,CASEWHENcourse_idIN(SELECTcourse_idFROMOpenCourseWHEREmonth=200706)THEN'○'ELSE'×'ENDAS'6月',CASEWHENcourse_idIN(SELECTcourse_idFROMOpenCourseWHEREmonth=200707)THEN'○'ELSE'×'ENDAS'7月',CASEWHENcourse_idIN(SELECTcourse_idFROMOpenCourseWHEREmonth=20070...
in case+一般过去时常意为because this might happen/be-cause perhaps this would happen/for fear that this would happen(因为这会发生/因为这将会发生/以免它会发生)。 在这里,无论现在时或过去时都可用should+动词原形来代替。should在此表示更小的可能性,但是这种结构不常见。 2...
AI代码解释 SELECTsname,CASEWHENsdept='CS'THENLOWER(sdept)ELSENULLENDASAAAFROMs;
"11else12echo"Create user$iis failed!"13fi14done 例:批量删除用户 1#!/bin/bash2foriinxuegodc{1..10} 3do4ifid$i> /dev/null;then5 userdel -r$i6sleep1 7if[ $? -eq 0 ];then8echo"User$ideleted successfully!"9else10echo"Faild to delete user$i"11fi12fi13done 例:交互式创建用户 1#...
Acase_expressioncannot include relational operators such as<or>for comparison against theswitch_expression. To test for inequality, useif, elseif, elsestatements. The MATLABswitchstatement does not fall through like a C languageswitchstatement. If the firstcasestatement istrue, MATLAB does not execute...
in case也是表示“以防;万一”,但是in case后面接条件状语从句,而in case of后面接名词或代词等。 You'd better take an umbrellain case of rain. =You'd better take an umbrellain case it rains. 你最好带把雨伞,以防下雨。 Conversat...
C. Solving philosophical problems.D. Promoting the use of a digital device.解析：此题源自于第一自然段的The goal of this book is to make the case for digital minimalism，故答案选B，也即，倡导一种简单的数字生活方式。29. What does the underlined word “declutter” in paragraph 3 mean?A. ...
“in case”是一个非常实用的英语短语,意为“以防万一”或“假使”。它可以用作连词或介词短语,以下是它的用法及句型总结: 一、作为连词 引导目的状语从句 用法:表示“以免;以防”,通常用于描述为了应对某种可能发生的情况而采取的措施。 句型:主句+in case+从句,或In case+从句,主句。 例句:I'll start to...
SQL Server中的WHEN ELSE in Case表达式 我正在SQL Server中编写case表达式,希望在else块中添加硬编码值。 我想检查case表达式,如果下面的DHB输出是2.1和ABC001,那么它应该显示ABC Hospital的硬编码值。 SELECT DISTINCT userid, CASE WHEN CHARINDEX('-', e.name) > 0...
After in case or just in case, you use a simple tense or should. You do not use 'will' or 'shall'. Be Careful!You do not use 'in case' or 'just in case' to say that something will happen as a result of something else happening. You do not say, for example, 'I will go ...