A.Insert Into tbAddress(strName,strTel) Values("萌萌","6545632")
B.Insert Into tbAddress(strName,strEmail) Values("萌萌", "")
C.Insert Into tbAddress(strName,strEmail) Values("萌萌",NULL)
D.Insert Into tbAddress(strName,intAge) Values(萌萌,22)
以下插入记录正确的( )
A.insert into emp(ename,hiredate,sal) values (value1,value2,value3);
B.insert into emp (ename,sal)values(value1,value2,value3);
C.insert into emp (ename)values(value1,value2,value3);
D.insert into emp (ename,hiredate,sal)values(value1,value2);
向“成绩”表末尾插入一条“学号”为“08102002”,“课程编号”为“4001”,“成绩”为“86”的新记录,正确的语句是( )。
A.INSERT INTO成绩VALUES(08102002,4001,86)
B.INSERT INTO成绩VALUES("08102002","4001",86)
C.INSERT FOR成绩VALUES(08102002,4001,"86")
D.INSERT FOR成绩VALUES("08102002","4001",86)
In a test database, you issue the SELECT … INTO OUTFILE statement to create a file with your t1 table data. You then TRUNCATE this table to empty it.()Mysql> SELECT * INTO OUTFILE ‘/tmp/t1.sql‘ from t1;mysql> TRUNCATE t1;
A.$ mysqladmin – u root – p – h localhost test – restore /tmp/t1.sql
B.Mysql> INSERT INTO t1 VALUES FROM ‘/tmp/t1.sql‘
C.$ mysql – u root – p – h localhost test < /tmp/t1.sql
D.Mysql> LOAD DATA INFILE ‘/tmp/t1.sql‘ INTO TABLE t1
E.$ mysqlinport – u root – p – h localhost test /tmp/t1.sql
如果学生表STUDENT是使用下面的SQL语句创建的
CREATE TABLE STUDENT(SNO C(4) PRIMARY KEY NOT NULL,;
SN C(8),;
SEX C(2),;
AGE N(2) CHECK(AGE>15 AND AGE<30))
下面的SQL语句中可以正确执行的是
A.INSERT INTO STUDENT(SNO,SEX,AGE)VALUES (“S9”,“男”,17)
B.INSERT INTO STUDENT(SN,SEX,AGE)VALUES (“李安琦”,“男”,20)
C.INSERT INTO STUDENT(SEX,AGE)VALUES (“男”,20)
D.INSERT INTO STUDENT(SNO,SN)VALUES (“S9”,“安琦”,16)
1.一道SQL语句面试题,关于group by表内容:2005-05-09 胜2005-05-09 胜2005-05-09 负2005-05-09 负2005-05-10 胜2005-05-10 负2005-05-10 负如果要生成下列结果, 该如何写sql语句? 胜 负2005-05-09 2 22005-05-10 1 2------------------------------------------create table #tmp(rq varchar(10),shengfu nchar(1))insert into #tmp values('2005-05-09','胜')insert into #tmp values('2005-05-09','胜')insert into #tmp values('2005-05-09','负')insert into #tmp values('2005-05-09','负')insert into #tmp values('2005-05-10','胜')insert into #tmp values('2005-05-10','负')insert into #tmp values('2005-05-10','负')1)select rq, sum(case when shengfu='胜' then 1 else 0 end)'胜',sum(case when shengfu='负' then 1 else 0 end)'负' from #tmp group by rq2) select N.rq,N.勝,M.負 from (select rq,勝=count(*) from #tmp where shengfu='胜'group by rq)N inner join(select rq,負=count(*) from #tmp where shengfu='负'group by rq)M on N.rq=M.rq3)select a.col001,a.a1 胜,b.b1 负 from(select col001,count(col001) a1 from temp1 where col002='胜' group by col001) a,(select col001,count(col001) b1 from temp1 where col002='负' group by col001) bwhere a.col001=b.col0012.请教一个面试中遇到的SQL语句的查询问题表中有A B C三列,用SQL语句实现:当A列大于B列时选择A列否则选择B列,当B列大于C列时选择B列否则选择C列。------------------------------------------select (case when ab then a else b end ),(case when bc then b esle c end)from table_name3.面试题:一个日期判断的sql语句?请取出tb_send表中日期(SendTime字段)为当天的所有记录?(SendTime字段为datetime型,包含日期与时间)------------------------------------------select * from tb where datediff(dd,SendTime,getdate())=04.有一张表,里面有3个字段:语文,数学,英语。其中有3条记录分别表示语文70分,数学80分,英语58分,请用一条sql语句查询出这三条记录并按以下条件显示出来(并写出您的思路): 大于或等于80表示优秀,大于或等于60表示及格,小于60分表示不及格。 显示格式: 语文 数学 英语 及格 优秀 不及格------------------------------------------select(case when 语文=80 then '优秀' when 语文=60 then '及格'else '不及格') as 语文,(case when 数学=80 then '优秀' when 数学=60 then '及格'else '不及格') as 数学,(case when 英语=80 then '优秀' when 英语=60 then '及格'else '不及格') as 英语,from table5.在sqlserver2000中请用sql创建一张用户临时表和系统临时表,里面包含两个字段ID和IDValues,类型都是int型,并解释下两者的区别?------------------------------------------用户临时表:create table #xx(ID int, IDValues int)系统临时表:create table ##xx(ID int, IDValues int)区别:用户临时表只对创建这个表的用户的Session可见,对其他进程是不可见的.当创建它的进程消失时这个临时表就自动删除.全局临时表对整个SQL Server实例都可见,但是所有访问它的Session都消失的时候,它也自动删除.6.sqlserver2000是一种大型数据库,他的存储容量只受存储介质的限制,请问它是通过什么方式实现这种无限容量机制的。------------------------------------------它的所有数据都存储在数据文件中(*.dbf),所以只要文件够大,SQL Server的存储容量是可以扩大的.SQL Server 2000 数据库有三种类型的文件:主要数据文件主要数据文件是数据库的起点,指向数据库中文件的其它部分。每个数据库都有一个主要数据文件。主要数据文件的推荐文件扩展名是 .mdf。次要数据文件次要数据文件包含除主要数据文件外的所有数据文件。有些数据库可能没有次要数据文件,而有些数据库则有多个次要数据文件。次要数据文件的推荐文件扩展名是 .ndf。日志文件日志文件包含恢复数据库所需的所有日志信息。每个数据库必须至少有一个日志文件,但可以不止一个。日志文件的推荐文件扩展名是 .ldf。7.请用一个sql语句得出结果从table1,table2中取出如table3所列格式数据,注意提供的数据及结果不准确,只是作为一个格式向大家请教。如使用存储过程也可以。table1月份mon 部门dep 业绩yj-------------------------------一月份 01 10一月份 02 10一月份 03 5二月份 02 8二月份 04 9三月份 03 8table2部门dep 部门名称dname-------------------------------- 01 国内业务一部 02 国内业务二部 03 国内业务三部 04 国际业务部table3 (result)部门dep 一月份 二月份 三月份-------------------------------------- 01 10 null null 02 10 8 null 03 null 5 8 04 null null 9------------------------------------------1)select a.部门名称dname,b.业绩yj as '一月份',c.业绩yj as '二月份',d.业绩yj as '三月份'from table1 a,table2 b,table2 c,table2 dwhere a.部门dep = b.部门dep and b.月份mon = '一月份' anda.部门dep = c.部门dep and c.月份mon = '二月份' anda.部门dep = d.部门dep and d.月份mon = '三月份' and2)select a.dep,sum(case when b.mon=1 then b.yj else 0 end) as '一月份',sum(case when b.mon=2 then b.yj else 0 end) as '二月份',sum(case when b.mon=3 then b.yj else 0 end) as '三月份',sum(case when b.mon=4 then b.yj else 0 end) as '四月份',sum(case when b.mon=5 then b.yj else 0 end) as '五月份',sum(case when b.mon=6 then b.yj else 0 end) as '六月份',sum(case when b.mon=7 then b.yj else 0 end) as '七月份',sum(case when b.mon=8 then b.yj else 0 end) as '八月份',sum(case when b.mon=9 then b.yj else 0 end) as '九月份',sum(case when b.mon=10 then b.yj else 0 end) as '十月份',sum(case when b.mon=11 then b.yj else 0 end) as '十一月份',sum(case when b.mon=12 then b.yj else 0 end) as '十二月份',from table2 a left join table1 b on a.dep=b.dep
如果学生表STUDENT是使用下面的SQL语句创建的: CREATE TABLE STUDENT(SNO C(4)PRIMARY KEY NOT NULL. SN C(8), SEX C(2), AGE N(2)CHECK(AGE>15 AND AGE<25)) 下面的SQL语句中可以正确执行的是( )。
A. INSERT INTO STUDENT(SN,SEX,AGE)VALUES(”王磊”,”男”,20)
B. INSERT INTO STUDENT(SN0,SEX,AGE)VALUES(”S9”,”男”,17)
C. INSERT INTO STUDENT(SEX,AGE)VALUES(”男”,20)
D. INSERT INTO STUDENT(SN0,SN,AGE)VALUES(”S9”,”王磊”,14)
如果学生表STUDENT是使用下面的SQL语句创建的 CREATE TABLE STUDENT(SNOC(4)PR1MARY KEY NOTNULL; SNC(8),; SEXC(2),; AGEN(2)CHECK(AGE>15AND AGE<30) 下面的SQI语句中可以正确执行的是 ______。
A.INSERT INTO STUDENT(SNO,SEX,AGE)valueS("S9","男",17)
B.INSERT INTO STUDENT(SNO,SEX,AGE)valueS(“李安琦”,“男”,20)
C.INSERT INTO STUDENT(SEX,AGE)valueS(“男”,20)
D.INSERT INTO STUDENT(SNO,SN)valueS("S9",“安琦”,16)
A table was created using the following DDL:CREATE TABLE employee (id SMALLINT NOT NULL, name VARCHAR(9), dept SMALLINT CHECK (dept BETWEEN 10 AND 100),job CHAR(10) CHECK (job IN (‘Sales‘,‘Mgr‘,‘Clerk‘)), hiredate DATE, salary DECIMAL(7,2), comm DECIMAL(7,2), PRIMARY KEY (id), CONSTRAINT yearsal CHECK (YEAR(hiredate) > 2004 OR salary > 80500) );Which of the following INSERT statements will fail?()
A.INSERT INTO employee VALUES (2, ‘Smith‘, 80, ‘Mgr‘, ‘09/03/2006‘, 80000, NULL)
B.INSERT INTO employee VALUES (4, ‘Smith‘, 86, ‘Mgr‘, ‘07/14/2003‘, 90000, NULL)
C.INSERT INTO employee VALUES (1, ‘Smith‘, 55, ‘Sales‘, ‘07/14/2003‘, NULL, NULL)
D.INSERT INTO employee VALUES (3, ‘Smith‘, 33, ‘Analyst‘, ‘11/26/2006‘, 90000, NULL)
Given the following DDL and INSERT statements:CREATE VIEW v1 AS SELECT col1 FROM t1 WHERE col1 > 10; CREATE VIEW v2 AS SELECT col1 FROM v1 WITH CASCADED CHECK OPTION; CREATE VIEW v3 AS SELECT col1 FROM v2 WHERE col1 < 100; INSERT INTO v1 VALUES(5); INSERT INTO v2 VALUES(5); INSERT INTO v3 VALUES(20); INSERT INTO v3 VALUES(100);How many of these INSERT statements will be successful?()
A.0
B.1
C.2
D.3
正确的SQL插入命令的语法格式是( )。
A.INSERT IN…VALUES…
B.INSERT TO…VALUES…
C.INSERT INTO…VALUES…
D.INSERT…VALUES…