若用如下的SQL语句创建一个student表:CREATE TABLE student(NO Char(4) NOT NULL,NAME Char(8) NOT NULL
若用如下的SQL语句创建一个student表: CREATE TABLE student( N0 C(4)NOT NULL, NAME C(8)NOT NULL, SEX C(2), AGE N(2) ) 可以插入到student表中的是(). A.('1031','曾华',男,23) B.('1031','曾华',NULL,NULL) C.(NULL,'曾华','男','23') D.('1031',NULL,'男',23)...
假设您的原始SQL语句是: ```sql CREATE TABLE student (SNO CHAR(4) PR ``` 这里看起来您想要定义一个学生编号(SNO)为CHAR类型且长度为4的字段,并且可能想指定这个字段为主键(PRIMARY KEY),但是语句不完整。下面是一个完整且合理的`student`表创建语句,包括一些常见的学生信息字段: ```sql CREATE TABLE ...
ALTER TABLE STUDENTS RENAME TO STUDENT_NEW; How to Truncate Table? When the need arises to delete the data inside the table, and the table structure, such as columns, etc., needs to remain as it is, we can use the TRUNCATE statement, which only deletes the data from the table but no...
Above query will create a new table “Student” with the primary key column as “studentId”. Notice that every column name has a data type defined. For example, we can store only INT data in the studentId column whereas we can store VARCHAR data in the studentName column. VARCHAR(45)...
若用如下的SQL语句创建一个student表:Create Table student (no char(4) not null,name char(8) not null,sex char(8),age tinyint(8) )可以插入到student表中的是( )A.( ‘1031’, ‘曾华’, 男, 23 )B.( ‘1031’, ‘曾华’, null, null )...
若用如下的SQL语句创建一个student表:CREATE TABLE student NO C(4)NOT NULL,NAME C(8)NOT NULL,SEX C(2
若用如下的SQL语句创建一个student表: CREATE TABLE student(NO C(4)NOT NULL,NAME C(8)NOT NULL, SEX C(2),AGE N(2)) 可以插入到student表中的是 A.('1031','李林',男,23)B.('1031','李林',NULC.(NULL,'李林','男','23')D.('1031',NULL,'男',23) 点击查看答案&解析手机看题 你可能...
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若用如下的SQL语句创建一个student表: CREATE TABLE student(NO C(4) NOT NULL,NAME C(8)NOT NULL.SEX C(2),AGEN(2) ) 可以插入到student表中的是 A.('1031','李林',男,23)B.('1031','李林',NULC.(NULL,'李林','男','23')D.('1031',NULL,'男',23) 点击查看答案&解析在线练习手机看题...