步骤一:确认数据库的归档模式 在执行ALTER SYSTEM ARCHIVE LOG之前,首先需要确认数据库当前的归档模式。归档模式有两种:归档模式和非归档模式。你可以通过以下代码查询数据库的归档模式: SELECTLOG_MODEFROMV$DATABASE; 1. 运行以上代码后,你将会得到一个结果,说明数据库当前的归档模式是哪一种。 步骤二:配置归档相关...
简介:在 PostgreSQL 中,有一些参数是不能通过 `ALTER SYSTEM SET` 语句进行动态修改的,这些参数通常需要在 PostgreSQL 的配置文件中进行手动修改。以下是一些不能通过 `ALTER SYSTEM SET` 修改的常见参数:1. **track_activities**2. **track_counts**3. **track_io_timing**4. **track_functions**5. **t...
-- 配置日志传输服务altersystemsetlog_archive_dest_2='SERVICE=standby_db'scope=both;altersystemsetlog_archive_max_processes=30scope=both;-- 配置重做应用服务altersystemsetfal_server=standby_db scope=both;altersystemsetfal_client=primary_db scope=both;altersystemsetstandby_file_management='AUTO'scope=...
Alter SESSION SET EVENTS 'immediate trace name systemstate level n'; 10).Error State Alter SESSION SET EVENTS 'immediate trace name errorstack level n'; 0 Error stack 1 level 0 + function call stack 2 level 1 + process state 3 level 2 + context area 11).Hang Analysis Alter SESSION SET...
SET SUSPEND_FOR_SNAPSHOT_BACKUP = { ON | OFF } 暂停或取消暂停数据库。 默认值 OFF。 MODE = COPY_ONLY 可选。 使用 COPY_ONLY 模式。 <target_recovery_time_option> ::= 适用对象:SQL Server(从 SQL Server 2012 (11.x) 开始) 指定每个数据库上间接检查点的频率。 从 SQL Server 2016(13.x)...
(archive_log_clause::=,checkpoint_clause::=,check_datafiles_clause::=,distributed_recov_clauses::=,end_session_clauses::=,quiesce_clauses::=,rolling_migration_clauses::=,rolling_patch_clauses::=,security_clauses::=,shutdown_dispatcher_clause::=,alter_system_set_clause::=,alter_system_re...
If AQ_TM_PROCESSES is not specified or is set to 0, then the queue monitor is not created. ARCHIVE_LAG_TARGET Parameter type Integer Default value 0 (disabled) Parameter class Dynamic: ALTER SYSTEM Range of values 0 or any integer in [60, 7200] Oracle9i Real Application ...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) SQL database in Microsoft Fabric Modifies an existing table or view index (rowstore, columnstore, or XML) by disabling, rebuilding, or reorganizing the index; or by ...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) SQL database in Microsoft Fabric Modifies an existing table or view index (rowstore, columnstore, or XML) by disabling, rebuilding, or reorganizing the index; or by ...
Total System Global Area 5.1310E+10 bytes Fixed Size 2240344 bytes Variable Size 3.1407E+10 bytes Database Buffers 1.9864E+10 bytes Redo Buffers 36098048 bytes Database mounted. Database opened. SQL> exit Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Product...