create table student1 as select sname,city from student 创建新表只复制旧表结构 create table student1 as select * from student where 1=2; 注.不继承表约束
CREATE TABLE DEPT( EPTNO NUMBER(2) CONSTRAINT PK_DEPT PRIMARY KEY, DNAME VARCHAR2(14), LOC VARCHAR2(13)) ; CREATE TABLE region( ID number(2) NOT NULL PRIMARY KEY, postcode number(6) default '0' NOT NULL, areaname varchar2(30) default ' ' NOT NULL); 4. 创建表时的命名规则和注意...
CREATE TABLE DEPT( EPTNO NUMBER(2) CONSTRAINT PK_DEPT PRIMARY KEY, DNAME VARCHAR2(14), LOC VARCHAR2(13)) ; CREATE TABLE region( ID number(2) NOT NULL PRIMARY KEY, postcode number(6) default '0' NOT NULL, areaname varchar2(30) default ' ' NOT NULL); 4. 创建表时的命名规则和注意...
1M, 8M, and 64M can be allocated. During segment creation, the system chooses the greatest of these four sizes that is equal to or smaller than INITIAL, and allocates as many extents of that size as are needed to reach or exceed the INITIAL...
create user cztp identified by cztp default tablespace TBS01 temporary tablespace temp quota unlimited on TBS01; --给用户权限 grant create session to cztp;--//cztp为用户名 grant create table TO cztp;--创建表的权限 GRANT CREATE VIEW TO cztp;--创建视图的权限 GRANT CREATE PROCEDURE TO cztp;-...
create table建表语句oracle 在Oracle数据库中，可以使用`CREATE TABLE`语句来创建表。下面是创建表的基本语法：CREATE TABLE table_name (column1 datatype [constraint],column2 datatype [constraint],column3 datatype [constraint],...);其中，`table_name`是要创建的表的名称，`column1`, `column2`, `...
建立:create user 用户名 identified by “密码”; 授权:grant create session to 用户名; grant create table to 用户名; grant create tablespace to 用户名; grant create view to 用户名; grant resource to grant connect,resource,dba to 用户; ...
to_date --复制表(表不存在)--只复制表结构,不复制表数据(因为1=2,不成立) create table student as select * from java where 1=2; select * from student; --复制表结构和表内容、不复制约束 create table student2 as select * from java; select * from student2; ...
1ORACLE 表名为变量create PROCEDURE up_CreateTable(tableName_in IN VARCHAR2)ASDeclare SQL_in VARCHAR2(5000);BEGINSQL_in := 'CREATE TABLE '||tableName_in||' (DM VARCHAR2(20) NOT NULL,MC VARCHAR2(60) NOT NULL,BZSM VARCHAR2(100))tablespace USERS pctfree 10 initrans 1 maxtrans 255 sto...
Copied to Clipboard Error: Could not Copy create table <table_name> ( <column1> <data type>, <column2> <data type>, <column3> <data type>, ... );So to create a table called toys, with the columns toy_name, weight, and colour, run:Copy...