What are cursors?
Answers were Sorted based on User's Feedback
Answer / umasankar
A cursor is a handle or name for sql area
two types of cursors they are
Explicit cursor: Created by user
Implicit Cursor: created by oracle automatically when ever
DML is performed.
Is This Answer Correct ? | 2 Yes | 0 No |
Answer / swamy.l.n
1.A PRIVATE MEMORY/BUFFER.
2.IT IS USED TO HOLD THE DATA FROM TABLES OR VIEWS IN
MEMORY LOCATION FOR MANIPULATION PURPOSE.
3.VALID IN PL/SQL BLOCK ONLY.
4.ARE VARIABLE THAT YOU CAN DEFINE IN THE DECLARE SECTION
OF THE PL/SQL BLOCK.
ORACLE USES WORK AREA CALLED PRIVATE SQL AREAS TO EXECUTE
SQL STATEMENT AND STORE INFORMATION.
5.IT IS A VIRTUAL TABLE TO PROCESS MULTIPLE RECORDS IN
PL/SQL CONSTRUCT.
Is This Answer Correct ? | 2 Yes | 0 No |
Answer / swapna
They are used to display information of a table into
effective number and also display more than one record at a
time.
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / harshad
As this would be not specific DW Concept but rather more on
RDBMS Programming concept.
Cursor is nothing but the pointer of memory addres to your
query result.
Explicit Cursor : User need to specifically declared in
your program (procedure/function)
Implicit Cursor : Any DML; it will handled by RDBMS.
Is This Answer Correct ? | 1 Yes | 0 No |
Explain me what are data marts?
What are the different types of join operations?
How to create diff. Types of templates?
What is data type of the surrogate key?
What are the key features of chameleon that separates it from other algorithms?
What is metadata in context of a datawarehouse?
What is Operational Data Store?
Difference between PowerPlay transformer and power play reports?
Explain multivalued dependency?
i have scheduled a report in a job in the cognos8.3 which would send the reports to the respective user ,now the repot ran and is sent to the respective user but it contains some unwanted data. So based on the senario can any one tell me that can we recall back the report ??????
for data loading in oracle, what are conventional loading , what are conventional loading and direct-path loading?
What are the possible data marts in retail sales?