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How do you compile a view in Oracle?
The view must be in your own schema or you must have ALTER ANY TABLE system privilege. Specify the schema containing the view. If you omit schema , then Oracle Database assumes the view is in your own schema. Specify the name of the view to be recompiled.
What is Oracle compile?
COMPILE. Specify COMPILE to cause Oracle Database to recompile the function. The COMPILE keyword is required. If Oracle Database does not compile the function successfully, you can see the associated compiler error messages with the SQL*Plus command SHOW ERRORS .
What are views in Oracle?
What is a VIEW in Oracle? An Oracle VIEW, in essence, is a virtual table that does not physically exist. Rather, it is created by a query joining one or more tables.
How do I run Utlrp in SQL?
Run the script immediately after installation, to ensure that users do not encounter invalid objects.
- Start SQL*Plus: Copy sqlplus “/ AS SYSDBA”
- Run the utlrp.sql script, where Oracle_home is the Oracle home path: Copy SQL> @Oracle_home/rdbms/admin/utlrp.sql.
What is difference between decode and case?
CASE is a statement while DECODE is a function. CASE can work with logical operators other than ‘=’ : DECODE performs an equality check only. CASE is capable of other logical comparisons such as < ,> ,BETWEEN , LIKE etc.
Can we compile package body without specification?
Can we create a package body without specification ? The package body won’t be usable until you compile a package specification for it.
Why view is used in SQL?
Views can join and simplify multiple tables into a single virtual table. Views can act as aggregated tables, where the database engine aggregates data (sum, average, etc.) and presents the calculated results as part of the data. Views can hide the complexity of data.
What are the types of Oracle view?
There r two types of VIEW in ORACLE. Simple View and Complex View. simple view derives data from only one table but complex view derives data from many table. simple view contain no functions or group of data but complex view contain function or group of data.
What is Oracle SQL view?
A view in oracle is nothing but a stored sql scripts. Views itself contain no data. A view is simply any SELECT query that has been given a name and saved in the database. For this reason, a view is sometimes called a named query or a stored query.
How do I alter view in SQL?
Using SQL Server Management Studio. To modify a view. In Object Explorer, click the plus sign next to the database where your view is located and then click the plus sign next to the Views folder. Right-click on the view you wish to modify and select Design.
What is Oracle view?
Oracle View. In Oracle, view is a virtual table that does not physically exist. It is stored in Oracle data dictionary and do not store any data. It can be executed when called. A view is created by a query joining one or more tables.