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The DROP INDEX statement is used to delete an index in a table.MS Access:DROP INDEX index_name ON table_name; SQL Server:DROP INDEX table_name.index_name; DB2/Oracle:DROP INDEX index_name; MySQL:ALTER TABLE table_nameDROP INDEX index_name; ...
Sequence objects apply to SQL Server 2012 through current versions.You can use CTE(Common Table Ex...
To create a new table in a database To insert data into a table To join a table To delete a table from a databaseSubmit Answer » What is an Exercise? Test what you learned in the chapter: SQL Create Table by completing 5 relevant exercises. To try more SQL Exercises please visit...
TheCREATE TABLEcommand creates a new table in the database. The following SQL creates a table called "Persons" that contains five columns: PersonID, LastName, FirstName, Address, and City: ExampleGet your own SQL Server CREATETABLEPersons ( ...
SQL Dropping a View A view is deleted with theDROP VIEWstatement. SQL DROP VIEW Syntax DROPVIEWview_name; The following SQL drops the "Brazil Customers" view: Example DROPVIEW[Brazil Customers]; Track your progress - it's free! Log inSign Up...
WHERE...; The following SQL creates a new table called "TestTable" (which is a copy of the "Customers" table): Example CREATETABLETestTableAS SELECTcustomername, contactname FROMcustomers; Track your progress - it's free! Log inSign Up...
if(mysqli_query($conn, $sql)) { echo"Table MyGuests created successfully"; }else{ echo"Error creating table: ". mysqli_error($conn); } mysqli_close($conn); ?> Example (PDO) <?php $servername ="localhost"; $username ="username"; ...
ExampleGet your own SQL Server CREATE DATABASE testDB; Tip: Make sure you have admin privilege before creating any database. Once a database is created, you can check it in the list of databases with the following SQL command: SHOW DATABASES;...
The following SQL creates an index named "idx_lastname" on the "LastName" column in the "Persons" table:CREATE INDEX idx_lastname ON Persons (LastName); If you want to create an index on a combination of columns, you can list the column names within the parentheses, separated by ...