数据库常用指令

1、数据库备份

C:\ShenTong\bin>osrimp -u sysdba/szoscar55 -d osrdb file="C:\2019-09-16.osr" level=schema schema=TEST;

create user TEST password '123456';

2、查询模式下的所有表

SELECT
    n . nspname AS  "SCHEMA" ,
    c . relname AS  "table_name" ,
    CASE c . relkind 
        WHEN 'r' THEN 'table' 
        WHEN 'f' THEN 'partition table' 
        WHEN 'v' THEN 'view' 
        WHEN 'i' THEN 'index' 
        WHEN 'g' THEN 'partition index' 
        WHEN 'S' THEN 'sequence' 
        WHEN 's' THEN 'special' 
        WHEN 'm' THEN 'materialized view' 
        WHEN 'k' THEN 'table(kstore)' 
        WHEN 'K' THEN 'partition table(kstore)' 
        WHEN 'e' THEN 'table(external)' 
    END AS  "TYPE" ,
    u . usename AS  "OWNER" 
FROM 
    info_schem . v_sys_class c 
    LEFT JOIN 
        info_schem . v_sys_user u 
        ON u . usesysid = c . relowner 
    LEFT JOIN 
        info_schem . v_sys_namespace n 
        ON n . oid = c . relnamespace 
WHERE 
    n . nspdbid = current_database_id ()
    AND c . relname <> 'SYS_JOBS' 
    AND c . relkind IN ('r' , 'f' , 'k' , 'K' , 'e' , '' ) 
    AND n . nspname NOT IN ('INFO_SCHEM' ) 
    AND n . nspname IN ('ADP' ) 
ORDER BY 
    1 ,
    2;

3、添加字段

ALTER TABLE DSAA.SYS_LOG ADD OPERATIONID VARCHAR(100) ;
COMMENT ON COLUMN DSAA.SYS_LOG.OPERATIONID IS '操作标识' ;

4、查看kstore服务

--重启服务
/etc/init.d/kstoredb_KSTOREd restart
--查看数据库的状态
/etc/init.d/kstoredb_KSTOREd status
--查看服务
ll /etc/init.d/

5、乱码配置

 <Connector URIEncoding="UTF-8" connectionTimeout="2000000" port="8180" protocol="HTTP/1.1" redirectPort="8443"/>

 6、查询所有字段

 SELECT COLUMN_NAME as "columnEn",REMARKS as "columnCn", 
      TYPE_NAME as "datatype",COLUMN_SIZE as "fieldLength"
 FROM V_SYS_COLUMNS 
WHERE TABLE_NAME = 'AAAAA' 
  AND TABLE_SCHEM = 'AAAAA'
  AND COLUMN_NAME <> 'SYSATTR_ROWVERSION' 
  AND COLUMN_NAME <> 'ROWID'
  AND COLUMN_NAME <> 'ROWVERSION'
  AND COLUMN_NAME <> 'DATAPACKNO'

7、查询所有表

SELECT TABLE_NAME FROM V_SYS_TABLES

8、设置当前查询模式

SET SEARCH_PATH='SYSDBA','AAAAA','PUBLIC';

 9、查询binlog

SELECT * FROM SHOW_BINLOG_EVENTS('C:\ShenTong\odbs\OSRDB\OSRDB-bin.000003', 0,0,500);