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 table_name EXISTS IF EXISTS (SELECT * FROM table_name WHERE id = ?)BEGIN-...
INDEX INNER JOIN INSERT INTO INSERT INTO SELECT IS NULL IS NOT NULL JOIN LEFT JOIN LIKE LIMIT NOT NOT NULL OR ORDER BY OUTER JOIN PRIMARY KEY PROCEDURE RIGHT JOIN ROWNUM SELECT SELECT DISTINCT SELECT INTO SELECT TOP SET TABLE TOP TRUNCATE TABLE UNION UNION ALL UNIQUE UPDATE VALUES VIEW WHERE...
The code at the server will create a valid SQL statement like this: Result SELECT*FROMUsersWHEREName =""or""=""ANDPass =""or""="" The SQL above is valid and will return all rows from the "Users" table, sinceOR ""=""is always TRUE. ...
The following SQL statement lists the number of customers in each country, sorted high to low:Example SELECT COUNT(CustomerID), CountryFROM CustomersGROUP BY Country ORDER BY COUNT(CustomerID) DESC; Try it Yourself » Demo DatabaseBelow is a selection from the "Orders" table in the ...
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", ...