Sql

What Is WHERE Clause In SQL?

The WHERE clause is used to filter the records in database table(s). The WHERE clause restricts the data which is returned from database table(s) through condition. The WHERE clause returns the only data/result sets from database which is matched with WHERE clause criteria.

Posted in: Sql

What Is SELECT DISTINCT Statement In SQL?

The DISTINCT clause is used with SELECT statement. The DISTINCT clause selects only unique/different values from database table(s). The DISTINCT clause is very useful when your database table contains duplicate values.

Posted in: Sql

AND & OR Operators In SQL

When you have multiple conditions in a WHERE clause in that situation the AND & OR operators can be used between these conditions. The AND & OR operators are used to filter the result based on multiple conditions. The AND & OR operators can also be used combine. AND Operator: The AND operator returns result […]

Posted in: Sql

What Is ORDER BY Clause In SQL?

The ORDER BY clause is used for sorting purpose of return result sets from database table(s). The ORDER BY clause sorts the result sets of one or more columns of database table(s). The ORDER BY clause uses two keywords for sorting the database tables(s): ASC for sorting by ASCENDING order and DESC for DESCENDING order. The […]

Posted in: Sql

What Is INSERT INTO Statement In SQL?

The INSERT INTO SQL statement inserts a new record/row in a database table. Types of INSERT INTO Statement: The first type of INSERT INTO statement does not specify column names of  a database table, it only specifies values. When you use this type of INSERT INTO statement you must insert all values which matches with table […]

Posted in: Sql

What Is DELETE Statement In SQL?

The DELETE statement deletes record or row in a database table. In most situations we use WHERE clause with DELETE statement to tell the DELETE statement that which row/record have to be deleted. Always give unique value to WHERE clause such as ID when you use DELETE statement. If you do not use the WHERE clause with DELETE statement […]

Posted in: Sql

What Is Update Statement In SQL?

The UPDATE statement updates a existing record/row in a database table. In most situations the WHERE clause is used with UPDATE statement because the WHERE clause specifies which record to be updated. If WHERE class is not be specified that the all records/rows will be updated in database table. Use WHERE class with UPDATE statement […]

Posted in: Sql

What Is IN Operator In SQL?

The IN operator is used to specify multiple values of a same column in database table. The IN operator is used with WHERE clause. Syntax: SELECT column_name(s) FROM table_name WHERE column_name IN (value1,value2,value3,…);

Posted in: Sql
Have a natural attraction for women cosmetics and replica watches uk clothes, no
more than two for men the most attractive one, is to make their own driving experience, happy and can serve as the facade of the car, another is to highlight the taste edify sentiment rolex replica watch. The replica rolex is undoubtedly the most fashionable accessories, wear a suit to attend the activities, but also get a decent match on the replica watches .