• 2022-05-29 问题

    update...set... [where]...语句可用于数据更新,其中用于指定修改条件的子句是? A: update B: set C: where D: 表名

    update...set... [where]...语句可用于数据更新,其中用于指定修改条件的子句是? A: update B: set C: where D: 表名

  • 2022-06-15 问题

    若将所有学生的年龄增加1岁,下列哪一个语句是正确的?( ) A: UPDATE Student.Sage SET Sage = 1+Sage; B: UPDATE Student SET Sage = Sage + 1; C: UPDATE Student.Sage SET Sage = Sage + 1; D: UPDATE Student.* FROM Student SET Sage = Sage + 1;

    若将所有学生的年龄增加1岁,下列哪一个语句是正确的?( ) A: UPDATE Student.Sage SET Sage = 1+Sage; B: UPDATE Student SET Sage = Sage + 1; C: UPDATE Student.Sage SET Sage = Sage + 1; D: UPDATE Student.* FROM Student SET Sage = Sage + 1;

  • 2022-06-03 问题

    下面选项中,能够更新user表中数据的SQL语句是() A: update into user set id = 'u001'; B: update user set id = 'u001' and username='jack'; C: update user set username='jack' where id = 1; D: update into user set id = 'u001', username='jack';

    下面选项中,能够更新user表中数据的SQL语句是() A: update into user set id = 'u001'; B: update user set id = 'u001' and username='jack'; C: update user set username='jack' where id = 1; D: update into user set id = 'u001', username='jack';

  • 2022-06-08 问题

    将STUDENT、表中NL列的值都更新为20岁,正确的SQL语句是______ A: UPDATE STUDENT SET NL=21 B: SET STUDENT UPDATE NL=20 C: UPDATE STUDENT SET NL=20 D: INSERT INTO STUDENT SET NL=20

    将STUDENT、表中NL列的值都更新为20岁,正确的SQL语句是______ A: UPDATE STUDENT SET NL=21 B: SET STUDENT UPDATE NL=20 C: UPDATE STUDENT SET NL=20 D: INSERT INTO STUDENT SET NL=20

  • 2022-06-09 问题

    将所有计算机系学生的年龄增加1岁的正确语句是:( )。 A: UPDATE SET Student.Sage = Student .Sage + 1 WHERE Student.Sdept = 'CS'; B: UPDATE Student SET Sage + 1 WHERE Sdept = 'CS'; C: UPDATE Student SET Sage =Sage + 1 WHERE Sdept = 'CS'; D: UPDATE Student SET Sage += 1 WHERE Sdept = 'CS';

    将所有计算机系学生的年龄增加1岁的正确语句是:( )。 A: UPDATE SET Student.Sage = Student .Sage + 1 WHERE Student.Sdept = 'CS'; B: UPDATE Student SET Sage + 1 WHERE Sdept = 'CS'; C: UPDATE Student SET Sage =Sage + 1 WHERE Sdept = 'CS'; D: UPDATE Student SET Sage += 1 WHERE Sdept = 'CS';

  • 2022-06-16 问题

    修改语句的Sql语法为? A: update 字段 set 字段=x B: delete 字段 set 字段=x C: update 表名 set 字段=x D: delete 表名 set 字段=x

    修改语句的Sql语法为? A: update 字段 set 字段=x B: delete 字段 set 字段=x C: update 表名 set 字段=x D: delete 表名 set 字段=x

  • 2022-06-18 问题

    下列用于更新的SQL语句中,正确的是() A: update<br/>user set id = u001 ; B: update<br/>user(id,username) values('u001','jack'); C: update<br/>user set id='u001',username='jack'; D: update<br/>into user set id = 'u001', username='jack';

    下列用于更新的SQL语句中,正确的是() A: update<br/>user set id = u001 ; B: update<br/>user(id,username) values('u001','jack'); C: update<br/>user set id='u001',username='jack'; D: update<br/>into user set id = 'u001', username='jack';

  • 2021-04-14 问题

    【多选题】下列SQL语句在实际运行时,可能转换的SQL语句为() update user <set> <if test="uname!=null">uname=#{uname}, </if> <if test="usex!=null">usex=#{usex}</if> </set> where uid=#{uid} A. update user set uname=#{uname} where uid=#{uid} B. update user set uname=#{uname}, usex=#{usex} where uid=#{uid} C. update user usex=#{usex} where uid=#{uid} D. update user set uname=#{uname}, usex=#{usex}

    【多选题】下列SQL语句在实际运行时,可能转换的SQL语句为() update user <set> <if test="uname!=null">uname=#{uname}, </if> <if test="usex!=null">usex=#{usex}</if> </set> where uid=#{uid} A. update user set uname=#{uname} where uid=#{uid} B. update user set uname=#{uname}, usex=#{usex} where uid=#{uid} C. update user usex=#{usex} where uid=#{uid} D. update user set uname=#{uname}, usex=#{usex}

  • 2022-05-31 问题

    要在tbAddress表中更新记录,下面哪条语句是正确的?( ) A: Update tbAddress Set strName="萌萌",intAge=22 Where ID=2 B: Update tbAddress Set strName=萌萌,intAge=22 Where strName=萌萌 C: Update tbAddress Set dtmSubmit=2008-10-1 Where strName="萌萌" D: Update tbAddress Set intAge=18

    要在tbAddress表中更新记录,下面哪条语句是正确的?( ) A: Update tbAddress Set strName="萌萌",intAge=22 Where ID=2 B: Update tbAddress Set strName=萌萌,intAge=22 Where strName=萌萌 C: Update tbAddress Set dtmSubmit=2008-10-1 Where strName="萌萌" D: Update tbAddress Set intAge=18

  • 2022-06-07 问题

    把student表中id字段值小于3的记录,将这些记录的grade字段值都更新为100() A: UPDATE FROM student SET grade=100 where id<;3 B: UPDATE student SET grade=100 where id<;3 C: UPDATE student SET grade=100 D: UPDATE INTO student SET grade=100 where id<;3

    把student表中id字段值小于3的记录,将这些记录的grade字段值都更新为100() A: UPDATE FROM student SET grade=100 where id<;3 B: UPDATE student SET grade=100 where id<;3 C: UPDATE student SET grade=100 D: UPDATE INTO student SET grade=100 where id<;3

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