• DBA常用SQL之DDL生成语句


    获取对象定义的包为:dbms_metadata,其中的get_ddl函数是获取对象的函数
    
    GET_DDL函数返回创建对象的原数据的DDL语句,参数说明
    
    1、object_type 
    ---需要返回原数据的DDL语句的对象类型
    2、name --- 对象名称
    3、schema 
    ---对象所在的Schema,默认为当前用户所在所Schema
    4、version ---对象原数据的版本
    5、model 
    ---原数据的类型默认为ORACLE
    6、transform. - XSL-T transform. to be 
    applied.
    7、RETURNS: 
    对象的原数据默认以CLOB类型返回
    
    其中,我们经常用到的是前三项。
    
    dbms_metadata包中的get_ddl函数定义:
    
    FUNCTION 
    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;
    
    注意:
    
    1、如果使用sqlplus需要进行下列格式化,特别需要对long进行设置,否则无法显示完整的SQL
    2、参数要使用大写,否则会查不到
    
    set 
    linesize 180
    set pages 999
    set long 
    
    1、查看数据库表的定义写法:
    
    select 
    dbms_metadata.get_ddl('TABLE','TABLENAME','USERNAME') from 
    dual;
    
    2、查看索引的SQL
    
    select 
    dbms_metadata.get_ddl('INDEX','INDEXNAME','USERNAME') from 
    dual;
    
    3、查看创建主键的SQL
    
    SELECT 
    DBMS_METADATA.GET_DDL('CONSTRAINT','CONSTRAINTNAME','USERNAME') FROM 
    DUAL;
    
    4、查看创建外键的SQL
    
    SELECT 
    DBMS_METADATA.GET_DDL('REF_CONSTRAINT','REF_CONSTRAINTNAME','USERNAME') FROM 
    DUAL;
    
    5、查看创建视图的SQL
    
    SELECT 
    DBMS_METADATA.GET_DDL('VIEW','VIEWNAME','USERNAME') FROM 
    DUAL;
    
    6、查看用户的SQL
    
    SELECT DBMS_METADATA.GET_DDL('USER','USERNAME') 
    FROM DUAL;
    
    7、查看角色的SQL
    
    SELECT 
    DBMS_METADATA.GET_DDL('ROLE','ROLENAME') FROM 
    DUAL;
    
    8、查看表空间的SQL
    
    SELECT 
    DBMS_METADATA.GET_DDL('TABLESPACE','TABLESPACENAME') FROM 
    DUAL;
    
    9、获取物化视图SQL
    
    select dbms_metadata.get_ddl('MATERIALIZED 
    VIEW','MVNAME') FROM DUAL;
    
    10、获取远程连接定义SQL
    
    SELECT 
    dbms_metadata.get_ddl('DB_LINK','DBLINKNAME','USERNAME') stmt FROM 
    dual
    
    11、获取用户下的触发器SQL
    
    select 
    DBMS_METADATA.GET_DDL('TRIGGER','TRIGGERNAME','USERNAME) FROM 
    DUAL;
    
    或
    
    SELECT l.owner,
           l.db_link,
           l.username,
           dbms_metadata.get_ddl('DB_LINK', l.db_link, l.owner) stmt
      FROM  dba_db_links l
    
    
    
    12、获取用户下的序列
    
    select 
    DBMS_METADATA.GET_DDL('SEQUENCE','SEQUENCENAME') from 
    DUAL;
    
    13、获取用户下的函数
    
    select 
    DBMS_METADATA.GET_DDL('FUNCTION','FUNCTIONNAME','USERNAME') from 
    DUAL
    
    14、获取包的定义
    
    select 
    DBMS_METADATA.GET_DDL('PACKAGE','PACKAGENAME','USERNAME') from 
    dual
    
    15、获取存储过程
    
    select 
    DBMS_METADATA.GET_DDL('PROCEDURE','PROCEDURENAME','USERNAME') from 
    dual
    
    16、获取包体定义
    
    select DBMS_METADATA.GET_DDL('PACKAGE 
    BODY','PACKAGEBODYNAME','USERNAME') from 
    dual
    
    17、获取远程数据库对象的定义
    
    SELECT 
    DBMS_LOB.SUBSTR@dblinkname(DBMS_METADATA.GET_DDL@dblinkname('TABLE', 
    'TABLENAME', 'USERNAME')) FROM DUAL@dblinkname
    
    18、获取多个对象的定义
    
    SELECT 
    DBMS_METADATA.GET_DDL(O.OBJECT_TYPE, O.object_name,O.OWNER)
    FROM DBA_OBJECTS 
    O
    where O.OBJECT_TYPE IN ('TABLE','INDEX','PROCEDURE','FUNCTION') and ONWER = 
    'ONWERNAME';
    
    DDL生成对象创建语句
    DDL生成对象创建语句
    select 
    j.SCHEMA_USER,
    'declare ' ||
    '  n_syn_points number; '||
    ' begin '||
    '  dbms_job.submit(n_syn_points,'||
    ''''||j.what||''''||','||
       ' sysdate,'||
    ''''||j.interval||''''||');'||
    '  commit; '||
    ' end; ' as ss
     from dba_jobs j 
    where j.LOG_USER not in ('SYS')
    and j.SCHEMA_USER='ZHAOPIN'
    ;
    
    select 'exec dbms_job.remove(' || job || ');' as ss,s.*
      from dba_jobs s
     where s.log_user = 'LCC'
    
    DDL生成创建Job或删除Job语句
    DDL生成创建Job或删除Job语句
    ---查询表空间
    select a.tablespace_name,a.bytes/1024/1024 "Sum MB",(a.bytes-b.bytes)/1024/1024 "used MB",b.bytes/1024/1024 "free MB",
    round(((a.bytes-b.bytes)/a.bytes)*100,2) "percent_used"
    from
    (select tablespace_name,sum(bytes) bytes from dba_data_files group by tablespace_name) a,
    (select tablespace_name,sum(bytes) bytes,max(bytes) largest from dba_free_space group by tablespace_name) b
    where a.tablespace_name=b.tablespace_name
    order by ((a.bytes-b.bytes)/a.bytes) desc;
    
    ---生成添加数据文件SQL
    select 'ALTER TABLESPACE '||f.tablespace_name||' ADD DATAFILE ' ||''''||f.FILE_NAME ||''''||' SIZE 10G;'  stras,f.*
    from dba_data_files f
    where f.TABLESPACE_NAME='SMARTDATA_HISTORY'
    ;
    
    DDL生成表空间添加文件SQL
    DDL生成表空间添加文件SQL
    select 'drop TYPE '||o.owner||'.'||o.object_name ||';'||chr(13)||chr(10)
      from dba_objects o
     where o.owner in 
     ('HRONLINE',
     'ETS',
     'LHC',
     'BACKUPUSER',
     'CAREER_DMOLVIEW',
     'ASSEREAD',
     'NORMREAD',
     'ASSE',
     'ZHAOPIN',
     'CAREER',
     'PERFSTAT',
     'INTERNCAREER',
     'HNCAREER',
     'HOLONLINE',
     'ZTECAREER'
     )
     and o.object_type='TYPE'
     order by o.created desc
     ;
    
    01_DDL_DROP_TYPE
    01_DDL_DROP_TYPE
    select 'drop view ' ||o.owner||'.'||o.object_name||';'||chr(13)||chr(10) 
     from dba_objects o
     where o.owner in 
     ('HRONLINE',
     'ETS',
     'LHC',
     'BACKUPUSER',
     'CAREER_DMOLVIEW',
     'ASSEREAD',
     'NORMREAD',
     'ASSE',
     'ZHAOPIN',
     'CAREER',
     'PERFSTAT',
     'INTERNCAREER',
     'HNCAREER',
     'HOLONLINE',
     'ZTECAREER'
     )
     and o.object_type='VIEW'
     order by o.created desc
     ;
    
    02_DDL_DROP_VIEW
    02_DDL_DROP_VIEW
    select 'drop sequence '||o.owner||'.'||o.object_name ||';'||chr(13)||chr(10)
      from dba_objects o
     where o.owner in 
     ('HRONLINE',
     'ETS',
     'LHC',
     'BACKUPUSER',
     'CAREER_DMOLVIEW',
     'ASSEREAD',
     'NORMREAD',
     'ASSE',
     'ZHAOPIN',
     'CAREER',
     'PERFSTAT',
     'INTERNCAREER',
     'HNCAREER',
     'HOLONLINE',
     'ZTECAREER'
     )
     and o.object_type='SEQUENCE'
     order by o.created desc
     ;
    
    03_DDL_DROP_SEQUENCE
    03_DDL_DROP_SEQUENCE
    select 'drop TRIGGER '||o.owner||'.'||o.object_name ||';'||chr(13)||chr(10)
      from dba_objects o
     where o.owner in 
     ('HRONLINE',
     'ETS',
     'LHC',
     'BACKUPUSER',
     'CAREER_DMOLVIEW',
     'ASSEREAD',
     'NORMREAD',
     'ASSE',
     'ZHAOPIN',
     'CAREER',
     'PERFSTAT',
     'INTERNCAREER',
     'HNCAREER',
     'HOLONLINE',
     'ZTECAREER'
     )
     and o.object_type='TRIGGER'
     order by o.created desc
     ;
    
    04_DDL_DROP_TRIGGER
    04_DDL_DROP_TRIGGER
    select 'drop MATERIALIZED VIEW '||o.owner||'.'||o.object_name ||';'||chr(13)||chr(10)
      from dba_objects o
     where o.owner in 
     ('HRONLINE',
     'ETS',
     'LHC',
     'BACKUPUSER',
     'CAREER_DMOLVIEW',
     'ASSEREAD',
     'NORMREAD',
     'ASSE',
     'ZHAOPIN',
     'CAREER',
     'PERFSTAT',
     'INTERNCAREER',
     'HNCAREER',
     'HOLONLINE',
     'ZTECAREER'
     )
     and o.object_type='MATERIALIZED VIEW'
     order by o.created desc
     ;
    
    05_DDL_DROP_MATERIALIZED_VIEW
    05_DDL_DROP_MATERIALIZED_VIEW
    select 'drop FUNCTION '||o.owner||'.'||o.object_name ||';'||chr(13)||chr(10)
      from dba_objects o
     where o.owner in 
     ('HRONLINE',
     'ETS',
     'LHC',
     'BACKUPUSER',
     'CAREER_DMOLVIEW',
     'ASSEREAD',
     'NORMREAD',
     'ASSE',
     'ZHAOPIN',
     'CAREER',
     'PERFSTAT',
     'INTERNCAREER',
     'HNCAREER',
     'HOLONLINE',
     'ZTECAREER'
     )
     and o.object_type='FUNCTION'
     order by o.created desc
     ;
    
    06_DDL_DROP_FUNCTION
    06_DDL_DROP_FUNCTION
    select 'drop PROCEDURE '||o.owner||'.'||o.object_name ||';'||chr(13)||chr(10)
      from dba_objects o
     where o.owner in 
     ('HRONLINE',
     'ETS',
     'LHC',
     'BACKUPUSER',
     'CAREER_DMOLVIEW',
     'ASSEREAD',
     'NORMREAD',
     'ASSE',
     'ZHAOPIN',
     'CAREER',
     'PERFSTAT',
     'INTERNCAREER',
     'HNCAREER',
     'HOLONLINE',
     'ZTECAREER'
     )
     and o.object_type='PROCEDURE'
     order by o.created desc
     ;
     
    
    07_DDL_DROP_PROCEDURE
    07_DDL_DROP_PROCEDURE
    select 'drop PACKAGE '||o.owner||'.'||o.object_name ||';'||chr(13)||chr(10) 
      from dba_objects o
     where o.owner in 
     ('HRONLINE',
     'ETS',
     'LHC',
     'BACKUPUSER',
     'CAREER_DMOLVIEW',
     'ASSEREAD',
     'NORMREAD',
     'ASSE',
     'ZHAOPIN',
     'CAREER',
     'PERFSTAT',
     'INTERNCAREER',
     'HNCAREER',
     'HOLONLINE',
     'ZTECAREER'
     )
     and o.object_type='PACKAGE'
     order by o.created desc
     ;
    
    08_DDL_DROP_PACKAGE
    08_DDL_DROP_PACKAGE
    select 'drop PACKAGE BODY '||o.owner||'.'||o.object_name ||';'||chr(13)||chr(10)
      from dba_objects o
     where o.owner in 
     ('HRONLINE',
     'ETS',
     'LHC',
     'BACKUPUSER',
     'CAREER_DMOLVIEW',
     'ASSEREAD',
     'NORMREAD',
     'ASSE',
     'ZHAOPIN',
     'CAREER',
     'PERFSTAT',
     'INTERNCAREER',
     'HNCAREER',
     'HOLONLINE',
     'ZTECAREER'
     )
     and o.object_type='PACKAGE BODY'
     order by o.created desc
     ;
    
    09_DDL_DROP_PACKAGE_BODY
    09_DDL_DROP_PACKAGE_BODY
    select 'drop table '||o.owner||'.'||o.object_name ||' cascade constraints ;'
      from dba_objects o
     where o.owner in 
     ('HRONLINE',
     'ETS',
     'LHC',
     'BACKUPUSER',
     'CAREER_DMOLVIEW',
     'ASSEREAD',
     'NORMREAD',
     'ASSE',
     'ZHAOPIN',
     'CAREER',
     'PERFSTAT',
     'INTERNCAREER',
     'HNCAREER',
     'HOLONLINE',
     'ZTECAREER'
     )
     and o.object_type='TABLE'
     order by o.created desc
     ;
    
    10_DDL_DROP_TABLE
    10_DDL_DROP_TABLE
    select 'execute dbms_job.remove('||j.JOB||');' as removejob from dba_jobs j
    where instr(j.LOG_USER,'SYS')<=0
    ;
    11_DDL_REMOVE_JOB
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  • 原文地址:https://www.cnblogs.com/vmsysjack/p/12150234.html
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