DBFS Sample Store plsql-hierarchical-profiler.zip This archive contains code to create several PL/SQL programs and to use the PL/SQL hierarchical performance profiler to record the execution of each. It also contains the profiler output for each run, prepared as a set of mutually cross-referenci...
/SQL由于分为数据库PL/SQL部分和工具PL/SQL。对于客户端来说,PL/SQL可以嵌套到相应的工具中,客户端程序可以执行本地包含PL/SQL部分,也可以向服务发SQL命令或激活服务器端的PL/SQL程序运行。 1.2.3 过程化 PL/SQL是Oracle在标准SQL上的过程性扩展,不仅允许在PL/SQL程序内嵌入SQL语句,而且允许使用各种类型的条件...
异常处理部分一般放在 PL/SQL 程序体的后半部,结构为: EXCEPTION WHEN first_exception THEN <code to handle first exception > WHEN second_exception THEN <code to handle second exception > WHEN OTHERS THEN <code to handle others exception > END; 异常处理可以按任意次序排列,但 OTHERS 必须放在最后。
Sample Output: Left 5 characters of department name: Execu Explanation: The said code in Oracle's PL/SQL defines a function that retrieves the first five characters of the department name based on the provided department ID. If a department with the given ID is found, it returns the first ...
Step 1. Create a PL/SQL object Right-click the Oracle data source and select New | Query Console. Alternatively, select one of the existing consoles from Query Consoles list (CtrlShiftF10). Type or paste your code in the console. Click the Execute button or press CtrlEnter to run the...
Sample PL/SQL Code if( FND_LOG.LEVEL_PROCEDURE >= FND_LOG.G_CURRENT_RUNTIME_LEVEL ) then FND_LOG.STRING(FND_LOG.LEVEL_PROCEDURE, 'fnd.plsql.MYSTUFF.FUNCTIONA.begin', 'Hello, world!' ); end if; Furthermore, you can use a local variable when inside a tight loop or branch of code...
PL/SQL code and in what PL/SQL modules -- however to identify performance bottlenecks withinin PL/SQL modules/routines and to pin-point hot spots in PL/SQL code at line level,DBMS_PROFILER, a database package, might be the right tool to use. Also check the documentation ofDBMS_HPROF...
1、先确认客户端连接配置没有问题,特别是服务名。如果使用plsql之类工具,检查oracle主目录和oci路径配置是否正确; 2、检查服务器端,首先通过lsnrctl status命令查看监听服务有没启动,状态有无问题; 3、如服务已启动且状态正确,检查服务器端配置文件,包括listener.ora和tnsnames.ora; ...
Database EE PL/SQL IMDB Toolkit for SAP NetWeaver Secure Enterprise Search Semantic Technologies Spatial TimesTen In-Memory Database Using JavaScript and Python with Database EE Sample Code Communications Order and Service Management Unified Inventory Management ...
-- Oracle使用2个引擎来执行SQL和代码块:SQL引擎和PL/SQL引擎,SQL语句会导致在两个引擎之间进行context switch,从而影响性能。 Performance can be improved substantially byminimizing the number of context switches required to run a particular block or subprogram. When a SQL statement runs inside a loop th...