Oracle 如何查询一个对象的完整定义语句
Oracle 如何查询一个对象的完整定义语句
语法：
DBMS_METADATA.GET_DDL (
object_type IN VARCHAR2,
name IN VARCHAR2,
schema IN VARCHAR2 DEFAULT NULL,
version IN VARCHAR2 DEFAULT 'COMPATIBLE',
model IN VARCHAR2 DEFAULT 'ORACLE',
transform IN VARCHAR2 DEFAULT 'DDL')
RETURN CLOB;
示例：select dbms_metadata.get_ddl('TABLE','EMP','SCOTT') from dual;
SQL> select dbms_metadata.get_ddl('TABLE','EMP','SCOTT') from dual;DBMS_METADATA.GET_DDL('TABLE','EMP','SCOTT')-------------------------------------------- CREATE TABLE "SCOTT"."EMP" ( "EMPNO" NUMBER(4,0), "ENAME" VARCHAR2(10),--设置LONG和pagesize后能完全显示SQL> SET LONG 2000000SQL> SET PAGESIZE 0SQL> select dbms_metadata.get_ddl('TABLE','EMP','SCOTT') from dual; CREATE TABLE "SCOTT"."EMP" ( "EMPNO" NUMBER(4,0), "ENAME" VARCHAR2(10), "JOB" VARCHAR2(9), "MGR" NUMBER(4,0), "HIREDATE" DATE, "SAL" NUMBER(7,2), "COMM" NUMBER(7,2), "DEPTNO" NUMBER(2,0), CONSTRAINT "PK_EMP" PRIMARY KEY ("EMPNO") USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT) TABLESPACE "USERS" ENABLE, CONSTRAINT "FK_DEPTNO" FOREIGN KEY ("DEPTNO") REFERENCES "SCOTT"."DEPT" ("DEPTNO") ENABLE ) SEGMENT CREATION IMMEDIATE PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT) TABLESPACE "USERS"