DROP INDEX DROP INDEX table_name.index_name (SQL Server)DROP INDEX index_name ON table_name (MS Access)DROP INDEX index_name (DB2/Oracle)ALTER TABLE table_nameDROP INDEX index_name (MySQL) DROP TABLE DROP TABLE
INSERT INTOThe INSERT INTO command is used to insert new rows in a table.The following SQL inserts a new record in the "Customers" table:Example INSERT INTO Customers (CustomerName, ContactName, Address, City, PostalCode, Country) VALUES ('Cardinal', 'Tom B. Erichsen', 'Skagen 21', '...
15. With SQL, how can you return all the records from a table named "Persons" sorted descending by "FirstName"? You answered: SELECT * FROM Persons ORDER BY FirstName DESC Correct Answer! 16. With SQL, how can you insert a new record into the "Persons" table? You answered: INSERT ...
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...
txtSQL = "SELECT * FROM Users WHERE UserId = " + txtUserId; And the following input: User id: The valid SQL statement would look like this: Result SELECT*FROMUsersWHEREUserId =105;DROPTABLESuppliers; Use SQL Parameters for Protection ...
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Exercise: SQL Insert IntoWhat is the purpose of the SQL INSERT INTO statement? To update records in a table To delete records from a table To add new records to a table To retrieve records from a tableSubmit Answer » What is an Exercise? Test what you learned in the chapter: SQL ...
❮ SQL Keywords ReferenceVALUESThe VALUES command specifies the values of an INSERT INTO statement.The following SQL inserts a new record in the "Customers" table:Example INSERT INTO Customers (CustomerName, ContactName, Address, City, PostalCode, Country) VALUES ('Cardinal', 'Tom B. Erichsen'...
The following SQL statement finds the sum of the quantity fields in the order_details table:Example Return the total amount of ordered items: SELECT SUM(quantity) FROM order_details; Run Example » Note: NULL values are ignored.Exercise? True or False.The SUM function can only be used ...
You can update existing records in a table by using the "UPDATE" statement:ExampleGet your own Node.js Server Overwrite the address column from "Valley 345" to "Canyon 123": var mysql = require('mysql'); var con = mysql.createConnection({ host: "localhost", user: "yourusername", ...