Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options SQL> @?/rdbms/admin/awrrpt //执行这个SQL就可以开始AWR报告收集 Current Instance ~~~ DB Id DB Name Inst Num Instance --- -...
当主库的某些日志没有成功传送到备库,那么这时候就发生了归档裂缝(Archive Gap)。目前Oracle提供了两种日志GAP的检测和处理机制,分别是自动GAP处理(Automatic Gap Resolution)和FAL进程GAP处理(FAL Gap Resolution)。自动GAP处理即主库上的ARCn进程会每分钟检查备库上的日志GAP情况并做相应处理。FAL(Fetch Archive Log...
setURL("jdbc:oracle:thin:@localhost:1521/FREEPDB1"); // jdbc:oracle:thin@[hostname]:[port]/[DB service name] ods.setUser("[Username]"); ods.setPassword("[Password]"); Connection conn = ods.getConnection(); PreparedStatement stmt = conn.prepareStatement("SELECT 'Hello World!' FROM ...
步骤1.确定[Oracle] and [DG4ODBC]位数 [oracle@qadb ~]$file$ORACLE_HOME/bin/dg4odbc/u01/app/oracle/product/11.2.0/db_1/bin/dg4odbc: ELF64-bit LSB executable, x86-64, version1(SYSV), dynamically linked (uses shared libs),forGNU/Linux2.6.32, BuildID[sha1]=8f5a341e1cb474a4aabc76f1c...
数据缓冲区命中率(百分比小于90就要加大db_cache_size) 查询V$SYSSTAT视图可以查看从内存中读取数据的频率。它提供了数据库中设置的数据块缓存区的命中率。这个信息可以帮助您判断系统何时需要更多的数据缓存(DB_CACHE_SIZE),或者系统的状态何时调整得不佳(二者均将导致较低的命中率)。
public void getDBConnection() throws SQLException The Java Code Insight feature displays a message reminding you to import the SQLException error handling package. Press the Alt+Enter keys to import it. The import java.sql.SQLException statement is added to the list of import packages. At the ...
jdbc:oracle:thin:[<user>/<password>]@//<host>[:<port>]/<service> jdbc:oracle:oci:[<user>/<password>]@//<host>[:<port>]/<service> 예: dbc:oracle:thin:@//myserver.com/customer_db jdbc:oracle:oci:scott/tiger@//myserver.com:5521/customer_db 자세한 내용은 JDBC User ...
/rdbms/admin/awrrpt //执行这个SQL就可以开始AWR报告收集Current Instance~~~DB Id DB Name Inst Num Instance--- --- --- ---1384114315 HELOWIN 1 helowinSpecify the Report Type~~~Would you like an HTML report, or a plain text report?Enter 'html' for an HTML report, or 'text' for plain...
public void getDBConnection() throws SQLException Java Code Insight displays a message reminding you to import the SQLException error handling package. Press Alt+Enter keys to import it. The import java.sql.SQLException statement is added to the list of import packages. At the end of the same...
Oracle DB 诊断数据库 • 检测和修复数据库损坏: – 使用新的RMAN 数据修复命令执行以下操作: — 列出故障 — 接收修复建议 — 修复故障 – 执行主动故障检查 • 处理块损坏: – 实时验证块完整性 – 执行块介质恢复 • 设置自动诊断资料档案库