resumable_timeout--waittime(inseconds)forRESUMABLE(Default7200)date_cache--size(inentries)ofdate conversioncache(Default1000)no_index_errors--abort load on any indexerrors(DefaultFALSE)partition_memory--direct path partition memory limit to startspilling(kb)(Default0)table--Tableforexpress mode load...
num_rows / 1024 / 1024 / b.seg_bytes_mb, 2)) * 100) > 30 order by b.seg_bytes_mb desc; #查询sql执行计划(根据sql_id) select * from table(dbms_xplan.display_cursor('5uv6crpj12y0p',NULL,'ADVANCED +PEEKED_BINDS')); #根据sqlid查看sql select a.* from v$sql a where a.SQL_...
0,1,tab.num_rows),3)*100||'%' "集群因子接近行数" from dba_tables tab, dba_indexes ind where tab.table_name=ind.table_name and tab.owner not in ('SYS','SYSTEM','WMSYS','DBSNMP','CTXSYS','XDB','ORDDATA','SYSMAN
su.tablespace,sql_textfrom V$TEMPSEG_USAGE su, v$parameter p, v$session se, v$sql swhere p.name = 'db_block_size'and su.session_addr=se.saddrand su.sqlhash=s.hash_valueand su.sqladdr=s.address
Version19.3.0.0.0SQL> 如果使用操作系统认证,需要设置OS_AUTHENT_PREFIX初始化参数,来指定操作系统认证用户名的前缀,这个前缀的默认值是OPS$, 当操作系统用户leo登录时,Oracle会检查是否有一个OPS$LEO的用户存在,如果存在,则允许用户登录。 SQL>showparameteros_authent_prefix; ...
如果希望看到某个用户的方案究竟有什么数据对象,可以使用plsql developer登录进去查看 ---(3)用户练习题: 1.创建用户tea,stu,并给这两个用户resource,connect角色 conn system/oraclehsp ---通过管理员身份登录 create user tea identified by tea ---创建tea用户,密码 grant...
将下面的SQL保存为 rowid_chunk.sql文件 主要功能:将表按照rowid范围分区,获得指定数目的rowid Extent区间(Group sets of rows in the table into smaller chunks), 以便于非分区表利用rowid来实现并行删除或更新 REM rowid_ranges should be at least 21REM utilize this script help delete large tableREM if up...
SET HISTORY LIMIT N allows you to change the default limit, where N is the maximum number. History is retained between SQLcl sessions. By default, the SHOW, HISTORY, CONNECT, and SET commands are not saved in history. SET HISTORY BLACKLIST allows you to set the commands that should not ...
SET HISTORY LIMIT N allows you to change the default limit, where N is the maximum number. History is retained between SQLcl sessions. By default, the SHOW, HISTORY, CONNECT, and SET commands are not saved in history. SET HISTORY BLACKLIST allows you to set the commands that should not ...
9 rows selected. 我们看一下132这个会话在很多的表上产生了TM锁,132这个会话至少底下产生了一个TX锁,同时132产生了TM锁,LOCK_MODE中是Row share说明是RS锁,是select for update产生的锁;132这个会话产生的TM锁的ID1列的ID数,这个TM在某个表上产生的锁,ID1就是这个表的编号...