It is necessary that the login and password are presented in the form of a variable. How to write the correct request?
<html> <body> <script> db = openDatabase("DATAPASS", "0.1", "LOGIN DATA", 200000); if (!db) { alert("Failed"); } db.transaction(function (trans) { trans.executeSql("CREATE TABLE IF NOT EXISTS pass (id INTEGER PRIMARY KEY ASC, login TEXT, password TEXT)"); trans.executeSql("INSERT INTO pass IF NOT EXISTS (login, password) values(?,?)", ["admin", "admin"]) trans.executeSql("INSERT INTO pass(login, password) values(?,?)", ["a123dmin1", "adm123in1"]) trans.executeSql("DELETE FROM pass WHERE login = ?", ["admin"]) }) </script> </body> </html>