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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.
Parameter Aliasing To optimize the subprogram call, the PL/SQL compiler can decide between the two techniques of the parameter passing. With the by-value techniques, the v
Transaction Control The Oracle is transaction oriented; that is, Oracle uses the transactions to make sure the data integrity. The transaction is a sequence of SQL data manip
Parameter Modes: You do not require to specify a parameter mode for the input bind arguments (those used, for illustration, in the WHERE clause) as the mode defaults to IN. Th
Substitution and Instantiation - SQL It shows how NULL might appear in substitution for a parameter of a predicate and how it might thus participate in instantiation of that p
Using Cursor Attributes To process the SQL data manipulation statements, the SQL engine must opens an implicit cursor named SQL. This cursor's attributes (%FOUND, %NOTFOUND, %
Table Comparison - SQL The following definitions for relation comparisons: Let r1 and r2 be relations having the same heading. Then: r1 ⊆ r2 is true if every tuple of r1
GOTO Statement The GOTO statement branches categorically to a block label or statement label. The label should be exclusive within its scope and should precede a PL/SQL bloc
Functions The function is a subprogram that calculates a value. The Functions and procedures are structured similar, except that the functions have a RETURN clause. You can
Closing a Cursor The CLOSE statements disable the cursor, and the result set becomes undefined. An illustration of the CLOSE statement as shown: CLOSE c1;
I want to implement heap sort algorithm in pl sql please share the source code for guidance
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