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Keyword & Parameter Description:
WHEN:
This keyword introduces the exception handler. You can have many exceptions execute the similar sequence of the statements by following the keyword WHEN with a list of the exceptions, unraveling them by the keyword OR. When any exception in the list is raised, the related statements are executed.
exception_name:
This identifies a predefined exception like ZERO_DIVIDE, or a user-defined exception formerly declared within the present scope.
OTHERS:
This keyword stands for all the exceptions not explicitly named in the exception-handling section of the block. The use of OTHERS is optional and is permitted only as the last exception handler. You cannot involve OTHERS in the list of exceptions subsequent the keyword WHEN.
Statement:
This is merely an executable statement.
Explicit Cursors The set of rows returned by the query can include zero, one, or multiple rows, depending on how many rows meet your search criteria. Whenever a query returns
to write a heap sort program usin pl-sql
Stored Subprograms Normally, tools (like Oracle Forms) which incorporate the PL/SQL engine can store subprograms locally for later, strictly local execution. Though, to become
I need SQL , WP SQL Expert Project Description: Expert required to modify WP SQL query. Skills required are MySQL, SQL, PHP, Wordpress
SELECT a.child_fname,a.child_lname,concat(b.parent_title,b.parent_fname), b.parent_lname,b.parent_tphone FROM child a,parent b WHERE a.parent_id=b.parent_id ORDER BY a.child_fnam
Example of Cast Operator So long as CAST is used as shown, we could obtain the total marks for each exam in similar fashion, using SUM (Mark) AS TotalMarks. However, this giv
Aggregate Operators SQL Supports all of the aggregate operators mentioned in the theory book and many more besides. The syntax, however, involves an unusual trick that SQL cal
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Restriction in SQL Syntax: SELECT DISTINCT StudentId FROM IS_CALLED WHERE Name = 'Boris' The WHERE clause operates on the result of the FROM clause in analogo
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