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Opening a Cursor
Opening the cursor executes the query & identifies the result set that consists of all rows that meet the query search criteria. For the cursors declared using the FOR UPDATE clause, the OPEN statement also locks these rows. An illustration of the OPEN statement is as shown:
DECLARE
CURSOR c1 IS SELECT ename, job FROM emp WHERE sal < 3000;
...
BEGIN
OPEN c1;
END;
The Rows in the result set are not retrieved when the OPEN statement is executed. Instead, the FETCH statement retrieves the rows.
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
EXECUTE IMMEDIATE Statement The EXECUTE IMMEDIATE statement prepare (parses) and instantly executes a dynamic SQL statement or an anonymous PL/SQL block. Syntax:
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Calling Constructors: The Calls to a constructor are allowed wherever the function calls are allowed. Similarly to the functions, a constructor is called as a section of an ex
Initializing and Referencing Collections Until you initialize a collection, a nested table or varray is automatically null (i.e. the collection itself is null, not its elements)
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Write an anonymous block that contains a PL/SQL procedure. The procedure takes two input parameter: oldZip and newZip, and it updates the zipcodes table by replacing all oldZip wit
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