What is difference between select statement and cursor
Answers were Sorted based on User's Feedback
Answer / gudekotas
SELECT STATEMENT CONTAINS PARTICULAR STRUCTURE AND SELECT
QUERY RESULT SET CONTAINS ROWID,ROWNUM.
CURSOR DOESN'T CONTAIN STRUCTURE AND IT IS
VIRTUAL(CONTEXAREA)MEANS NO ROWID,NO ROWNUM.
| Is This Answer Correct ? | 11 Yes | 2 No |
The above answer is not so correct.
cursor can fetch rowid, rownum also from table.
The select into cant retrieve more than 1 record in plsql.
But cursor can retrieve more records that can be viewed for modified later in plsql.
Cursors has attributes like open,close,fetch,notfound. Those attributes not applicable in select..into clause.
finally select..into in plsql, just select column values and storing into plsql variable.
| Is This Answer Correct ? | 6 Yes | 1 No |
Answer / akash
Using select..into statement u cannot fetch more than 1 rows.
Beside naming the same select statement as cursor explicitly allows user to options like OPEN,CLOSE,FETCH.
| Is This Answer Correct ? | 2 Yes | 0 No |
how to get second highest salary in SQL(as/4000
Does oracle use sql?
Can a key be both primary and foreign?
I have one Excel file with 1,50,000 Records. Now I need to load that whole file into Oracle Database with same columns in Excel sheet . I need PLSQL Procedure or used by SQL PLUS
How do I quit sql?
Explain ttitle and btitle.
what is global variable in pl/sql
what is a table in a database ? : Sql dba
i have a customer table. trans_id trans_date trans_amt debit_credit_indicator 001 01-JAN-13 1099 cr 001 12-JAN-13 500 db 002 24-FEB-13 400 db 002 23-MAR-13 345 cr 001 18-APR-13 800 cr 002 15-MAR-13 600 db 001 12-FEB-13 200 cr i want like this output. trans_id trans_amt debit_credit_indicator i want get highest credit amount and lowest credit amount and highest debit amount and lowest debit amount for each trans_id.
What are the advantages of indexing?
How do I view tables in sql developer?
Are null values same as that of zero or a blank space?
Oracle (3259)
SQL Server (4518)
MS Access (429)
MySQL (1402)
Postgre (483)
Sybase (267)
DB Architecture (141)
DB Administration (291)
DB Development (113)
SQL PLSQL (3330)
MongoDB (502)
IBM Informix (50)
Neo4j (82)
InfluxDB (0)
Apache CouchDB (44)
Firebird (5)
Database Management (1411)
Databases AllOther (288)