how to retrieve last tree records from table? select *from emp where rownum > (select count(*)-3 from emp); i am using this query to get last three records from table but its not giving any output, so please tell me what is the error in this query.
16 18112how do you restrict number of rows for a particular value in a column.For example:there is a table called fruits,having apples,bananas ,papayas.I dont want to have more than 100 apples in that table ,so how can u restrict number of rows for apple to hundred?
6 9014If a procedure within a package is invalidated whether the entire package will be invalid and has to be recompiled again?
2 7389how to give permission to users that users can update/insert/delete on a row of table on timeing 10am to 6pm only?
TCS,
4 9985There is a table, In one column it has implemented a index, but the index is disturbed by the regular dml statements.. but still we need to keep the index. how it is possible?
1 5418Suppose I have to create a view on a table, that is not yet been created by DBA. I khow the table structure. Is it possible to create the view before DBA creates this table? If yes then how? Is it possible to create synonym in this way?
4 10505I have one table,in that table (1)i have java1.1 version books are 2 and java1.5 version books are 4. (2).Net2.0 books are 3, .Net3.5 books are 2 (3)ABC1.6 books are 4, ABC2.0 books are 3. Now i want output is like Book Count Java 6 .Net 5 ABC 7 For this i need sql query, please help me if anyone how to get this result. Thanks, Seenu
Adea,
4 4867
Is mariadb a nosql database?
What is data manipulation language?
Why do we use subquery?
What is synonyms?
What is aggregate function in sql?
What is difference between stored function and application function?
How do I save a sql query?
What is snowflake sql?
what is a view? : Sql dba
What is sql injection vulnerability?
What is sql performance tuning?
Explain character-manipulation functions?
What can sql server reporting services do?
Are stored procedures faster than dynamic sql?
what are the performance and scalability characteristics of mysql? : Sql dba