【RMAN】使用RMAN增量備份重新整理 Standby Database,rmanstandbyStep 1: Create the Incremental BackupRMAN> BACKUP DEVICE TYPE DISK INCREMENTAL FROM SCN 750983 DATABASE FORMAT '/tmp/incr_for_standby/bkup_%U'; Step 2: Make the Incremental Backup
【MongoDB】The description of procedure in MongoDB,mongodbdescriptionIn this blog the procedure of mongodb will be described in details. It is known that mongodb has provided a series of efficient solution to some different questions, such as high
一個簡單的遊標刪除SQL SERVER表,遊標sqlserver表use databaseNamedeclare @tblname char(100)declare @sql char(5000)declare table_cursor cursor for select name from sysobjects where name like 'tb_card[_]%' and name<>'Tb_card_regist' and
資料表空間,什麼是資料表空間1.查看某個使用者對應的資料表空間和datafile select t1.username,t2.tablespace_name,t2.file_name,t1.temporary_tablespace ,t3.file_name from dba_users t1 left join
mysql主從切換步驟,mysql主從切換1> 正常切換1)從伺服器檢查SHOW PROCESSLIST語句的輸出,直到你看到Has read all relaylogwaiting for the slave I/O thread to update it 2)確保從伺服器已經處理了日誌中的所有語句。 mysql> STOP SLAVE IO_THREAD
sql for xml query sample,xmlsamplesample 1:declare @x xml select @x='<ArrayOfScheduledTime> <ScheduledTime> <RecurrenceType>EveryMonday</RecurrenceType> <Stamp>
mysql雙機熱備的配置步驟,mysql雙機熱備步驟設定雙機熱備:首先要在兩台機器上建立同步處理的使用者:grant replication slave on *.* to 'repdcs'@'192.168.21.39' identified by '123456'; grant all privileges on *.* to 'repdcs'@'192.168.21.39 identified by '123456';FLUSH PRIVILEGES;
oracle中的彙總函式count、max、min、sum、avg以及NVL函數的用法,oracle中的彙總函式count、max、min、sum、avg以及NVL函數的用法 分組函數彙總函式對一組行中的某個列執行計算執行計算並返回單一的值。彙總函式忽略空值。彙總函式經常與 SELECT 語句的 GROUP BY 子句一同使用,所以有的時候也把其稱之為分組函數。
mysql主從配置的參數配置與步驟,mysql主從參數步驟主從配置的步驟:在主庫建立要同步的資料庫,建立主庫的帳號和修改主備庫配置create database web default character set utf8grant replication slave on *.* to 'repdcssub'@'192.168.191.112' identified by '123456'; grant all privileges on *.* to
mysql新添加使用者與刪除使用者具體操作命令,mysql具體操作方法1 :使用mysql root(root許可權)使用者登陸直接賦權也可以建立使用者/usr/bin/mysqladmin -u root password 123456mysql -uroot -p 密碼查看所有使用者名稱與密碼select host ,user ,password from user;grant all on ec.* to 'root'@'%' identified by