摘要：
安装 percona server for mongodb 后，使用mongosh登录，并不能看到关于percona版本的对应信息。比如： # mongosh Current Mongosh Log ID: 67c6a0e7eac840351494d971 Connecting to: mongod 阅读全文
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Performance Schema: Measure Multi-Threaded Slave Activity
2022-08-03 14:53 by abce, 36 阅读, 收藏,
摘要：
Performance Schema In many types of database workloads, using a multi-threaded slave from 5.6+ helps improve replication performance. I’ve had a numbe 阅读全文
使用T-SQL Prepare a secondary database for an Always On availability group
2022-07-10 21:49 by abce, 30 阅读, 收藏,
摘要：
--在主副本节点上修改数据库属性 --在SQLSERVER 2012中，默认是simple恢复模式 use master; go alter database abce set recovery full; go --在主副本节点上全库备份 DECLARE @CurrentTime VARCHAR( 阅读全文
SQL Commands
2022-12-01 11:05 by abce, 29 阅读, 收藏,
摘要：
SQL Commands DDL(Data Definition Language) create drop alter tgruncate rename DML(Data Manipulation Language) insert update delete call Call a PL/SQL 阅读全文
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