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Naming ConventionsThe similar naming conventions apply to all PL/SQL program items and units including the variables, cursors, constants, cursor variables, procedures, exceptions, functions, and packages. The Names can be simple, remote, qualified, or both qualified and remote. For illustration, you might use the procedure name raise_salary in any of the following ways shown below:raise_salary(...); -- simpleemp_actions.raise_salary(...); -- qualifiedraise_salary@newyork(...); -- remoteemp_actions.raise_salary@newyork(...); -- qualified and remoteIn the first condition, you basically use the procedure name. In the second condition, you should qualify the name using the dot notation as the procedure is stored in a package named as the emp_actions. In the third condition, using the remote access indicator (@), you reference the database link newyork as the procedure is stored in the remote database. In the fourth condition, you qualify the procedure name and reference the database link.
%NOTFOUND The %NOTFOUND is logical, opposite of the %FOUND. The %NOTFOUND yields FALSE if the last fetch returned a row, or TRUE when the final fetch failed to return a row. I
Tables within a Table - SQL Figure here is an exact copy of the one in the theory book and as before it is just an alternative way of representing some of the information con
Question 1. Update stock levels when the order is cancelled At times, customers make mistakes in submitting their orders and call to cancel the order. Brewbean’s wants to create a
EXIT The EXIT statement forces a loop to done unconditionally. Whenever an EXIT statement is encountered, the loop is done immediately and controls the passes to the next statem
Example of Null operator - NiNo Rule If we wanted to make HIGHER_OF adhere to "NULL in, NULL out"-let's call it the NiNo rule-we would have to write something like what is sho
Literature review
Remote Operations: As the illustration shows below, the PL/SQL subprograms can execute the dynamic SQL statements which refer to the objects on a remote database: PROCEDURE
Understanding Nested Tables Within the database, the nested tables can be considered as one-column database tables. The Oracle stores the rows of a nested table in no specific o
On occasion, some of Brewbean's customers mistakenly leave an item out of a basket already checked out, so they create a new basket containing the missing items. However, they requ
Create a procedure named STATUS_SHIP_SP that allows a company to employee in the Shipping Department to update the status of an order to add shipping information. The BB_BASKETSTAT
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