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EXIT-WHENThe EXIT-WHEN statement permits a loop to complete conditionally. Whenever the EXIT statement is encountered, the condition in the WHEN clause is computed. When the condition is true, the loop completes and controls the passes to the next statement after the loop. An illustration is as shown below:LOOPFETCH c1 INTO...EXIT WHEN c1%NOTFOUND; -- exit loop if condition is true...END LOOP;CLOSE c1;Until the condition is true, the loop cannot complete. Thus, a statement inside the loop should change the value of the condition. In the last illustration, if the FETCH statement returns a row, then the condition is false. When the FETCH statement fails to return a row, then the condition is true, the loop completes, and then control passes to the CLOSE statement. The EXIT-WHEN statement replaces a simple IF statement. For illustration, compare the following statements as:IF count > 100 THEN | EXIT WHEN count > 100;EXIT; |END IF; |These statements are logically equal, but the EXIT-WHEN statement is easier to understand and read.
LOB Types The large object (LOB) datatypes like BFILE, BLOB, CLOB, and NCLOB store the blocks of unstructured data (like graphic images, text, video clips, and sound waveforms)
Third Step at defining type SID in SQL CREATE DOMAIN SID AS VARCHAR(5) CHECK ( VALUE IS NOT NULL AND SUBSTRING(VALUE FROM 1 FOR 1) = 'S' AND CAST('+'||SUBSTRING(VALUE
Fetching Across Commits The FOR UPDATE clauses acquire exclusive all row locks. All rows are locked when you open the cursor, and when you commit your transaction they are unl
Data Abstraction The Data abstraction extracts the important properties of data while ignoring the not necessary details. Once you design a data structure, you can fail to reme
Find the account numbers of all customers whose balance is more than 10,000 $
heap sort program in pl/sql
Project Description: I am looking to change FullCalendar to add/delete sql server data when events are removed or dropped from Calendar. Events should only be included by dra
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
WHILE-LOOP The WHILE-LOOP statement relates a condition with the series of statements enclosed by the keywords LOOP and END LOOP, as shown: WHILE condition LOOP sequence_of_sta
set serveroutput on declare a number(5); b number(5); c number(5); begin a:=&a; b:=&b; c:=a/b; dbms_output.put_line(c); exception when zero_d
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