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Parameter and Keyword Description:
SQL:
This SQL is the name of the implicit SQL cursor.
%FOUND:
This attribute results TRUE if an INSERT, DELETE, or UPDATE statement affected one or more rows or a SELECT INTO statement returned one or more rows. Or else, it results FALSE.
%ISOPEN:
This attribute always results FALSE as the Oracle closes the SQL cursor automatically after executing its related SQL statement.
%NOTFOUND:
This attribute is the logical reverse of the %FOUND. It results TRUE if an INSERT, DELETE, or UPDATE statement affect no rows, or the SELECT INTO statement returned no rows. Or else, it results FALSE.
%ROWCOUNT:
This attribute results the number of rows affected by an INSERT, DELETE, or UPDATE statement, or returned by the SELECT INTO statement.
Truth Tables: However in propositional logic - here we are restricted to expressing sentences and where the propositions are true or false - so we can check where a particular
Write a pl/sql block that declares and uses cursors with parameters. In a loop, use a cursor to retrieve the department number and the department name from the departments table
CLOSE Statement The CLOSE statement allows the resources held by a cursor variable or open cursor to be reused. No more rows can be fetched from the cursor variable or closed
Recursion The Recursion is a powerful method for simplify the design of the algorithms. Principally, the recursion means the self-reference. In the recursive mathematical serie
Cursor Variables Similar to a cursor, cursor variable points to the current row in the result set of a multi-row query. But, dissimilar a cursor, a cursor variable can be opene
Write SQL queries to solve the following specifications. Include the query AND THE OUTPUT. A screen dump of the output is acceptable. Show as many rows as you can. A screen dump i
Parameter and Keyword Description: EXIT: An unconditional EXIT statement (i.e., one without a WHEN clause) exits the present loop instantly. The Execution resumes with th
Assignment of Variable - Updating a Variable Syntax: SET SN = SID ('S2'); This can obviously be read as "set the variable SN to be equal in value to SID ( 'S2' )".
Forward Declarations The PL/SQL needs that you declare an identifier before using it. And hence, you should declare a subprogram before calling it. For illustration, the decla
%ISOPEN The %ISOPEN yields TRUE if its cursor or cursor variable is open; or else, the %ISOPEN yields FALSE. In the illustration, you use the %ISOPEN to select an action:
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