If you want to hide these working columns from the final output, you need to list all the columns out again in the final select. Provided you've listed all the necessary columns in the subquery, you've avoided the performance and maintenance issuesselect *brings. In these cases it'd be ...
But with a bitmap Oracle Database has to lock the affected rowid ranges for both the old and new values!As a result, bitmap indexes are best suited for tables that will only have one process at a time writing to them. This is often the case on reporting tables or data warehouses. ...
In this case each Database user has his certificate.The following how to is an example of JDBC/THIN SSL setup using the 11.1.0.6 JDBC driver against an 11.1.0.6 Oracle Database Server. It demonstrates, creates a self signed oracle wallet for the server and client and then using this to ...
With the Grafana plugin for Oracle Database, you can quickly visualize your Oracle data in Grafana.
Also you could configure Oracle WebLogic Server to use Oracle JDBC THIN driver’s connect-time failover as well as Fast Connection Failover from Oracle JDBC driver’s Implicit Connection Cache. In this demo, we will configure and use Oracle WebLogic Server JDBC multi data sources for failover ...
摘自:http://www.codeproject.com/KB/database/ORACLE_UDT.aspx?display=Print Introduction This code shows how to use Oracle's User Defined Types such asVARRAYusing ODP.NET in aWHEREclause of a query in an Oracle Stored Procedure. I am passing three parameters into my Oracle Stored Procedure:...
This chapter is a basic tour of the kernel-provided device infrastructure in a functioning Linux system. 本章是对Linux系统中内核提供的设备基础架构的基本介绍。 Throughout the history of Linux, there have been many changes to how the kernel presents devices to the user. We’ll begin by looking...
Stored procedures in PostgreSQL are ones that define a function for creating triggers or custom functions. There are three main types of control structures available with PostgreSQL to use with stored procedures: IF, CASE, and LOOP. IF statements ...
The decode function can be used in SQL for and IF-THEN-ELSE construction. It's an alternative for the CASE statement which was introduced in Oracle 8. Syntax: decode( expression , compare_value, return_value, [,compare, return_value] ... [,default_return_value] ) ...
How to use SQL parameters with dotConnect for Oracle dotConnect for Oracle enhances SQL handling capabilities with usage of parameters in SQL queries. You can make execution of a query or stored procedure very flexible using several simple techniques. This article describes some basics you must be ...