oradebug -g all dump systemstate 258 -- WAITING SESSIONS: -- The entries that are shown at the top are the sessions that have -- waited the longest amount of time that are waiting for non-idle wait -- events (event column). You can research and find out what the wait -- event ind...
Long-running queries sometimes fail because undo information required for consistent read operations is no longer available. This happens when committed undo blocks are overwritten by active transactions. Automatic undo management provides a way to explicitly control when undo space can be reused; that ...
Think of this as being equivalent to running this in SQL*Plus: @my_script.sql; Each statement is executed. Also, ALL rows are fetched. So once it’s finished executing, there are no open cursors left around. The more obvious difference here is that the output comes back formatted as pla...
While a dedicated server process is good for long running queries and administrative tasks, an idle process or too many dedicated processes can result in an inefficient use of resources. Shared server mode eliminates the need for a dedicated server process for each connection. A dispatcher directs...
Open theInstalledtab, find theDatabase Tools and SQLplugin, and select the checkbox next to the plugin name. Connect to an Oracle database To connect to the database, create a data source that will store your connection details. You can do this using one of the following ways: ...
Download the Oracle JDBC driver that is compliant with the JDK version that you are using. You can find the latest versions of the JDBC driver on thedownload page.. Make sure to include the JDBC drivers on the classpath. SeeWhat are the different JAR files on the download page for?to ...
Integration difficulties. Many business applications need to talk to other systems, such as identity servers for access control, inventory systems for running queries, and sales systems for handling customer transactions. Many low-code platforms have integrations for common systems, including industry-lead...
为桌面应用程序获取 Java 某些使用 macOS 的 Java 8 用户需要手动更新 下载Java Java 是什么?卸载帮助 您是要寻找 JDK 下载的软件开发人员吗? OpenJDK Early Access 工作版本 Java SE 开发工具包
jason> db.movies.find({"sku":"NTV55017"}).explain() { queryPlanner: { plannerVersion: 1, namespace: 'jason.movies', indexFilterSet: false, parsedQuery: { sku: { '$stringOnly': 'NTV55017' } }, rewrittenQuery: { sku: { '$stringOnly': 'NTV55017' } }, ...
You can configure the Queries per second (QPS) to the source database, RPS of Full Data Migration, and Data migration speed for full migration (MB/s) parameters for full data synchronization tasks to reduce the load on the destination database server. ...