• 2022-10-26 问题

    关于ResultType取值错误的是() 未知类型:{'options': ['[select id="selectPersonCount" resultType="Integer"]_x000D_ select count(*) from_x000D_ person[/]', '[select id="selectPersonCount" resultType="int"] select count(*) from person[/]', '[select id="selectPersonCount" resultType="_int"] select count(*) from person[/]', '[select id="selectPersonCount" resultType="java.lang.Integer"] select count(*) from person[/]'], 'type': 102}

    关于ResultType取值错误的是() 未知类型:{'options': ['[select id="selectPersonCount" resultType="Integer"]_x000D_ select count(*) from_x000D_ person[/]', '[select id="selectPersonCount" resultType="int"] select count(*) from person[/]', '[select id="selectPersonCount" resultType="_int"] select count(*) from person[/]', '[select id="selectPersonCount" resultType="java.lang.Integer"] select count(*) from person[/]'], 'type': 102}

  • 2022-06-16 问题

    下列两个语句select [name] from book where bno in (select bno from borrow)和select [name] from book where exists ( select * from borrow where borrow.bno=book.bno) 查询结果相同。

    下列两个语句select [name] from book where bno in (select bno from borrow)和select [name] from book where exists ( select * from borrow where borrow.bno=book.bno) 查询结果相同。

  • 2022-06-15 问题

    在 T-SQL 语法中, SELECT 查询语句的完整语法较复杂,但至少包括的部分是[ ]。 A: SELECT ,INTO B: SELECT ,FROM C: SELECT ,GROUP D: 仅SELECT E: DISTINCT

    在 T-SQL 语法中, SELECT 查询语句的完整语法较复杂,但至少包括的部分是[ ]。 A: SELECT ,INTO B: SELECT ,FROM C: SELECT ,GROUP D: 仅SELECT E: DISTINCT

  • 2022-07-02 问题

    根据Goods、Types两张表,查询商品名称、类别名称SQL语句为select[1]fromGoods[2]‍Typeson[3]‍

    根据Goods、Types两张表,查询商品名称、类别名称SQL语句为select[1]fromGoods[2]‍Typeson[3]‍

  • 2022-06-07 问题

    关系SC(Sno,Cno,Grade)表示学号,课程号,成绩。现要查询最高分在91分以上的学生的学号和平均成绩,正确的语句是______。 A: SELECT Sno,MAX(Grade) FROM SC WHERE MAX(Grade)>=91 GROUP BY Sno B: SELECT Sno,MAX(Grade) FROM SC GROUP RY Sno HAVING MAX(Grade)>=91 C: SELECT Sno,MAX(Grade) FROM SC WHERE MAX(Grade)>=91 ORDER BY Sno D: SELECT Sno,MAX(Grade) FROM SC GROUP BY Cno HAVING MAX(Grade)>=91

    关系SC(Sno,Cno,Grade)表示学号,课程号,成绩。现要查询最高分在91分以上的学生的学号和平均成绩,正确的语句是______。 A: SELECT Sno,MAX(Grade) FROM SC WHERE MAX(Grade)>=91 GROUP BY Sno B: SELECT Sno,MAX(Grade) FROM SC GROUP RY Sno HAVING MAX(Grade)>=91 C: SELECT Sno,MAX(Grade) FROM SC WHERE MAX(Grade)>=91 ORDER BY Sno D: SELECT Sno,MAX(Grade) FROM SC GROUP BY Cno HAVING MAX(Grade)>=91

  • 2022-06-17 问题

    请补充横线中的代码,将major(专业表)中的id字段的值和name字段的填充到下拉列表中 &#91;?php include "conn.php"; $result=mysqli_query($conn,"SET NAMES UTF8")or die("数据查询失败"); $sql="select * from major"; $result=mysqli_query($conn,$sql) or die("数据查询失败"); <br&#93; ?> … [br][/br] &#91;select name="major"&#93; &#91;?php while($record=mysqli_fetch_assoc($result)){?&#93; &#91;option value="<?php echo ________ ?&#93; "> &#91;?php echo ________ ?&#93;&#91;/&#93; &#91;?php } ?&#93; [br][/br] </select

    请补充横线中的代码,将major(专业表)中的id字段的值和name字段的填充到下拉列表中 &#91;?php include "conn.php"; $result=mysqli_query($conn,"SET NAMES UTF8")or die("数据查询失败"); $sql="select * from major"; $result=mysqli_query($conn,$sql) or die("数据查询失败"); <br&#93; ?> … [br][/br] &#91;select name="major"&#93; &#91;?php while($record=mysqli_fetch_assoc($result)){?&#93; &#91;option value="<?php echo ________ ?&#93; "> &#91;?php echo ________ ?&#93;&#91;/&#93; &#91;?php } ?&#93; [br][/br] </select

  • 2022-06-07 问题

    关系SC(Sno,Cno,Grade)表示学号、课程号、成绩。现要查询最高分在91分以上的学生的学号和平均成绩,正确的语句是______。 A: SELECT Sno,MAX(Grade)<br> FROM SC<br> WHERE MAX(Grade)≥91<br> GROUP BY Sno B: SELECT Sno,MAX(Grade)<br> FROM SC<br> GROUP BY Sno<br> HAVING MAX(Grade)≥91 C: SELECT Sno,MAX(Grade)<br> FROM SC<br> WHERE MAX(Grade)≥91<br> ORDER BY Sno D: SELECT Sno,MAX(Grade)<br> FROM SC<br> GROUP BY Cno<br> HAVING MAX(Grade)≥91

    关系SC(Sno,Cno,Grade)表示学号、课程号、成绩。现要查询最高分在91分以上的学生的学号和平均成绩,正确的语句是______。 A: SELECT Sno,MAX(Grade)<br> FROM SC<br> WHERE MAX(Grade)≥91<br> GROUP BY Sno B: SELECT Sno,MAX(Grade)<br> FROM SC<br> GROUP BY Sno<br> HAVING MAX(Grade)≥91 C: SELECT Sno,MAX(Grade)<br> FROM SC<br> WHERE MAX(Grade)≥91<br> ORDER BY Sno D: SELECT Sno,MAX(Grade)<br> FROM SC<br> GROUP BY Cno<br> HAVING MAX(Grade)≥91

  • 2022-06-09 问题

    与SELECT TAB1.* FROM TAB1 WHERE InStr(&#91;简历&#93;,"篮球")<>0功能相同的语句是______。 A: SELECT TAB1.* FROM TAB1 WHERE TAB1. 简历 Like "篮球" B: SELECT TAB1.* FROM TAB1 WHERE TAB1. 简历 Like "*篮球" C: SELECT TAB1.* FROM TAB1 WHERE TAB1. 简历 Like "*篮球*" D: SELECT TAB1.* FROM TAB1 WHERE TAB1. 简历 Like "篮球*\

    与SELECT TAB1.* FROM TAB1 WHERE InStr(&#91;简历&#93;,"篮球")<>0功能相同的语句是______。 A: SELECT TAB1.* FROM TAB1 WHERE TAB1. 简历 Like "篮球" B: SELECT TAB1.* FROM TAB1 WHERE TAB1. 简历 Like "*篮球" C: SELECT TAB1.* FROM TAB1 WHERE TAB1. 简历 Like "*篮球*" D: SELECT TAB1.* FROM TAB1 WHERE TAB1. 简历 Like "篮球*\

  • 2022-06-09 问题

    与SELECT TAB1.* FROM TAB1 WHERE InStr(&#91;简历&#93;,"篮球")<>0功能相同的语句是( )。 A: A) SELECT TAB1.* FROM TAB1 WHERE TAB1.简历 Like "篮球" B: B) SELECT TAB1.* FROM TAB1 WHERE TAB1.简历 Like "*篮球" C: C) SELECT TAB1.* FROM TAB1 WHERE TAB1.简历 Like "*篮球*" D: D) SELECT TAB1.* FROM TAB1 WHERE TAB1.简历 Like "篮球*\

    与SELECT TAB1.* FROM TAB1 WHERE InStr(&#91;简历&#93;,"篮球")<>0功能相同的语句是( )。 A: A) SELECT TAB1.* FROM TAB1 WHERE TAB1.简历 Like "篮球" B: B) SELECT TAB1.* FROM TAB1 WHERE TAB1.简历 Like "*篮球" C: C) SELECT TAB1.* FROM TAB1 WHERE TAB1.简历 Like "*篮球*" D: D) SELECT TAB1.* FROM TAB1 WHERE TAB1.简历 Like "篮球*\

  • 2022-11-04 问题

    有下列SQL SEl.ECT语句: SElECT*FROM工资表WHERE基本工资&#91;=3000 AND基本工资&#93;=1000。 下列与该语句等价的是( )。 A: SELECT*FROM工资表WHERE基本工资BE—TWEEN 1000 AND 3000 B: SElECT*FROM工资表WHERE基本工资BE TWEEN 3000 AND l000 C: SELECT*FROM工资表WHERE基本工资FROM 1000 INT0 3000 D: SElECT*FROM工资表WHERE基本工资FROM 3000 INT0 1000

    有下列SQL SEl.ECT语句: SElECT*FROM工资表WHERE基本工资&#91;=3000 AND基本工资&#93;=1000。 下列与该语句等价的是( )。 A: SELECT*FROM工资表WHERE基本工资BE—TWEEN 1000 AND 3000 B: SElECT*FROM工资表WHERE基本工资BE TWEEN 3000 AND l000 C: SELECT*FROM工资表WHERE基本工资FROM 1000 INT0 3000 D: SElECT*FROM工资表WHERE基本工资FROM 3000 INT0 1000

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