SQL SUBQUERY: Exercise-15 with Solution. Write a query to display the employee number, name( first name and last name ), and salary for all employees who earn more than the average salary and who work in a department with any employee with a 'J' in their name.
Starting from SQL Server 2012, you can format numeric types using the T-SQL FORMAT () function. This function accepts three arguments; the number, the format, and an optional “culture” argument. The format is supplied as a format string. A format string defines how the output should be formatted. In this case, I used N as the second argument.A single stored procedure can be used to select, add, update, and delete data from a database table. In this article, we learned how to create a single stored procedure to perform all operations using a single SP in SQL Server.Learn how to write simple Perl programs that extract or manipulate data stored in DB2 UDB. You will go from the simple task of selecting a row from a database into a Perl program, to more advanced topics, including dealing with large objects and invoking stored procedures.
In SQL database, definitions for user defined tables are saved in system tables. We are able to see the definitions, such as column name, number of columns, data type, size, etc. from the system tables. With this information, it is possible to construct SQL statements dynamically to transform data from rows to columns for any target table involved.
The ORDER BY statement in sql is used to sort the fetched data in either ascending or descending according to one or more columns. By default ORDER BY sorts the data in ascending order.; We can use the keyword DESC to sort the data in descending order and the keyword ASC to sort in ascending order.