What is the difference between normal and corelated subqueries?

2 Answers  

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List the parts of a database trigger.

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how to we delete a row using varray

3 Answers   CTC,

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How to assign a table row to a record variable?

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what is the use of rank function?

1 Answers  

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while i take backup using ibm tsm the following errors occurred: rman-03009 ora-19513 ora-27206 ora-19502 ora-27030 ora-ora19511

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> CREATE OR REPLACE FUNCTION FACTORIAL_1(factstr varchar2 ) 2 RETURN NUMBER AS 3 new_str VARCHAR2(4000) := factstr||'*' ; 4 fact number := 1 ; 5 BEGIN 6 7 WHILE new_str IS NOT NULL 8 LOOP 9 fact := fact * TO_NUMBER(SUBSTR(new_str,1,INSTR(new_str,'*')-1)); 10 new_str := substr( new_str,INSTR(new_str,'*')+1); 11 END LOOP; 12 13 RETURN fact; 14 15 END; explanation Above program?

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If I have a select statment which retrives 2 rows, & that rows have the same data in all the fields except the last field and I want to merge the 2 rows to be in 1 row with concatenating the last field which have the different data.... eg: the 1st row has these fields: A-B-C the second row has: A-B-X ........ i want to merge the two row to be in one row like ----> A- B- C,X

2 Answers  

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what is unique key?

14 Answers   Amazon, Cap Gemini, Infosys, Wipro,

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What is a system tablespace and when it is created?

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Why do you use stored procedures and state some of its disadvantages?

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How to update rows in table, suppose i have lacks of rows in table how to update total table with update statement. Can u please any one answer this question with update statement.

2 Answers  

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