SQL*Plus Copy 命令的语法: 网管联盟bitsCN_com COPY {FROM database | TO database | FROM database TO database} {APPEND|CREATE|INSERT|REPLACE} destination_table [(column, column, column, ...)] USING query 我们分部分来解释一下: COPY – 这个不太需要解释,主命令,声明要执行COPY操作 From Datab...
SQL*Plus Copy 命令的语法: 网管联盟bitsCN_com COPY {FROM database | TO database | FROM database TO database} {APPEND|CREATE|INSERT|REPLACE} destination_table [(column, column, column, ...)] USING query 我们分部分来解释一下: COPY – 这个不太需要解释,主命令,声明要执行COPY操作 From Datab...
CONSTRAINT s_emp_commission_pct_ck CHECK (commission_pct IN(10,12.5,15,17.5,20))); 8. 通过子查询建表 通过子查询建表的例子 SQL>CREATE TABLE emp_41 AS SELECT id, last_name, userid, start_date FROM s_emp WHERE dept_id = 41; SQL> CREATE TABLE A as select * from B where 1=2; ...
-- Create/Recreate check constraints alter table STUDENT.STUINFO add constraint ch_stuinfo_age check (age>0 and age<=50);--给字段年龄age添加约束,学生的年龄只能0-50岁之内的 alter table STUDENT.STUINFO add constraint ch_stuinfo_sex check (sex='1' or sex='2'); alter table STUDENT.STUIN...
Insert Data in Table Edit Table in Oracle Delete Table in Oracle Constraints Types of Tables in Oracle Components of a Table The components of a database table include columns, rows, and cells, which collectively organize and store data in a structured manner: ...
Oracle PL / SQL Table Copy Table Create a copy table and insert value to it SQL> SQL> SQL> CREATE TABLE EMP (EMPNO NUMBER(4) NOT NULL, 2 ENAME VARCHAR2(10), 3 JOB VARCHAR2(9), 4 MGR NUMBER(4), 5 HIREDATE DATE, 6 SAL NUMBER(7, 2), 7 COMM NUMBER(7, 2), 8 DEPTNO ...
关于表的克隆有多种方式，比如我们可以使用create table ..as .. ，也可以使用create table .. like...
Create Copy of Table with Subset of Rows Thread starter prowe Start date Apr 5, 2006 Not open for further replies. Apr 5, 2006 #1 prowe Programmer Dec 16, 2002 3 ZA How do I do 'create table tab1 as select * from tab2 where...' (Oracle syntax) in Sybase? Sort by date...
CREATE TABLE http://download.oracle.com/docs/cd/E11882_01/server.112/e17118/statements_7002.htm#SQLRF01402 表空间(tableSpace) 段(segment) 盘区(extent) 块(block) 关系 一. Storage 参数说明 1. INITIAL Specify the size of the first extent of the object. Oracle allocates spac...
copy_statistics IN BOOLEAN := FALSE, copy_mvlog IN BOOLEAN := FALSE); 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 此方式的优缺点: 优点:可以根据你传入的参数,选择需要复制的依赖,有索引,触发器,约束,权限,统计信息。当重定义dbms_redefinition.finish_redef_table之后,会自动切换这些依赖到分...