dbms_metadata.get_ddl学习
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dbms_metadata.get_ddl学习(转) 2012-09-12 10:56:16| 分类: Oracle | 标签:dbms_metadata get_ddl oracle 建表 sql |字号大
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今天在网上看到介绍dbms_metadata.get_ddl的文章,很不错,学习下
1.显示设置:
/*创建DBMS_METADATA:
@?/rdbms/admin/catmeta.sql
*/
SETSERVEROUTPUTON
SETLINESIZE1000
SETFEEDBACKOFF
setlong999999
SETPAGESIZE1000
/*若希望不显示storage参数:
EXEC DBMS_METADATA.SET_TRANSFORM_PARAM(DBMS_METADATA.SESSION_TRANSFORM,'STORAGE',false);
*/
2.9i R2所支持的45个OBJECT TYPE:
TypeName Meaning
------------------------------ ------------------------------
AUDIT_OBJ auditsofschemaobjects
AUDIT auditsofSQLstatements
ASSOCIATION associatestatistics
CLUSTER clusters
COMMENT comments
CONSTRAINT constraints
CONTEXT applicationcontexts
DB_LINK databaselinks
DEFAULT_ROLE defaultroles
DIMENSION dimensions
DIRECTORY directories
FUNCTION storedfunctions
INDEX indexes
INDEXTYPE indextypes
JAVA_SOURCE Javasources
LIBRARY externalprocedurelibraries
MATERIALIZED_VIEW materializedviews
MATERIALIZED_VIEW_LOG materializedviewlogs
OBJECT_GRANT objectgrants
OPERATOR operators
OUTLINE storedoutlines
PACKAGE storedpackages
PACKAGE_SPEC packagespecifications
PACKAGE_BODY packagebodies
PROCEDURE storedprocedures
PROFILE profiles
PROXY proxyauthentications
REF_CONSTRAINT referentialconstraint
ROLE roles
ROLE_GRANT rolegrants
ROLLBACK_SEGMENT rollbacksegments
SEQUENCE sequences
SYNONYM synonyms
SYSTEM_GRANT systemprivilegegrants
TABLE tables
TABLESPACE tablespaces
TABLESPACE_QUOTA tablespacequotas
TRIGGER triggers
TRUSTED_DB_LINK trustedlinks
TYPE user-definedtypes
TYPE_SPEC typespecifications
TYPE_BODY typebodies
USER users
VIEW views
XMLSCHEMA XMLschema
3.举例:
--表:(注意:表名要大写)
SQL>SELECTDBMS_METADATA.GET_DDL('TABLE','T2')FROMDUAL;
DBMS_METADATA.GET_DDL('TABLE','T2')
--------------------------------------------------------------------------------
CREATETABLE"TEST"."T2"
( "OWNER"VARCHAR2(30),
"OBJECT_NAME"VARCHAR2(128),
"SUBOBJECT_NAME"VARCHAR2(30),
"OBJECT_ID"NUMBER,
"DATA_OBJECT_ID"NUMBER,
"OBJECT_TYPE"VARCHAR2(18),
"CREATED"DATE,
"LAST_DDL_TIME"DATE,
"TIMESTAMP"VARCHAR2(19),
"STATUS"VARCHAR2(7),
"TEMPORARY"VARCHAR2(1),
"GENERATED"VARCHAR2(1),
"SECONDARY"VARCHAR2(1)
)PCTFREE10PCTUSED40INITRANS1MAXTRANS255NOCOMPRESSLOGGING
STORAGE(INITIAL65536NEXT1048576MINEXTENTS1MAXEXTENTS2147483645
PCTINCREASE0FREELISTS1FREELISTGROUPS1BUFFER_POOLDEFAULT)
TABLESPACE"EXAMPLE"
--索引:
SQL>SELECTDBMS_METADATA.GET_DDL('INDEX','IDX_OBJECT_NAME')FROMDUAL;
DBMS_METADATA.GET_DDL('INDEX','IDX_OBJECT_NAME')
--------------------------------------------------------------------------------
CREATEINDEX"TEST"."IDX_OBJECT_NAME"ON"TEST"."T2"("OBJECT_NAME")
PCTFREE10INITRANS2MAXTRANS255
STORAGE(INITIAL65536NEXT1048576MINEXTENTS1MAXEXTENTS2147483645
PCTINCREASE0FREELISTS1FREELISTGROUPS1BUFFER_POOLDEFAULT)
TABLESPACE"EXAMPLE"
--主键:
SQL>SELECTDBMS_METADATA.GET_DDL('CONSTRAINT','PK_AA')FROMDUAL;
DBMS_METADATA.GET_DDL('CONSTRAINT','PK_AA')
--------------------------------------------------------------------------------
ALTERTABLE"TEST"."PARENT"ADDCONSTRAINT"PK_AA"PRIMARYKEY("BB")
USINGINDEXPCTFREE10INITRANS2MAXTRANS255
STORAGE(INITIAL65536NEXT1048576MINEXTENTS1MAXEXTENTS2147483645
PCTINCREASE0FREELISTS1FREELISTGROUPS1BUFFER_POOLDEFAULT)
TABLESPACE"EXAMPLE" ENABLE
--外键:
SQL>SELECTDBMS_METADATA.GET_DDL('REF_CONSTRAINT','FK_AA')FROMDUAL;
DBMS_METADATA.GET_DDL('REF_CONSTRAINT','FK_AA')
--------------------------------------------------------------------------------
ALTERTABLE"TEST"."CHILD"ADDCONSTRAINT"FK_AA"FOREIGNKEY("AA")
REFERENCES"TEST"."PARENT"("BB")ENABLE
--表空间:
SQL> SELECT DBMS_METADATA.GET_DDL('TABLESPACE','SYSAUX') FROM DUAL;
DBMS_METADATA.GET_DDL('TABLESPACE','SYSAUX')
------------------------------------------------------------------------
CREATE TABLESPACE "SYSAUX" DATAFILE
'/u01/oracle/oradata/orcl/sysaux01.dbf
--用户:
select DBMS_METADATA.GET_DDL('USER','SCOTT') from dual ;
-------------------------------------------------------------------------------
set serveroutput on
set long 999999
set pagesize 0
select DBMS_METADATA.GET_DDL('TABLE','EMP','SCOTT') from dual;
desc DBMS_METADAT
FUNCTION GET_DDL RETURNS CLOB
Argument Name Type In/Out Default?
------------------------------ ----------------------- ------ --------
OBJECT_TYPE VARCHAR2 IN
NAME VARCHAR2 IN
SCHEMA VARCHAR2 IN DEFAULT
VERSION VARCHAR2 IN DEFAULT
SELECT DBMS_METADATA.GET_DDL('TABLESPACE','USERS') FROM DUAL;
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