Sql backup w3schools

BACKUP DATABASE databasename. A database most often contains one or more tables. Each table is identified by a name (e.g. Customers or Orders). Tables contain records . ASC, Sorts the result set in ascending order.

SQL Keywords Reference. BETWEEN, Selects values within a given range. ALTER TABLE, ALTER TABLE . The DROP TABLE command deletes a table in the database . Tip: Make sure you have admin privilege before creating any database. Once a database is create you can check it in the list of databases with the following . The INSERT INTO SELECT statement copies data from one table and inserts it into another table.

Note: Be careful when updating records in a table! Notice the WHERE clause in the UPDATE statement. The WHERE clause specifies which record(s) that . The LIKE operator is used in a WHERE clause to search for a specified pattern in a column. There are two wildcards often used in . Parameter, Description. The value to return if condition is TRUE.

The CASE statement goes through conditions and returns a value when the first condition is met (like an IF-THEN-ELSE statement). The SELECT DISTINCT statement is used to return only distinct (different) values. Inside a table, a column often . The COUNT() function returns the number of rows that matches a specified criteria. It is possible to write the INSERT . The AVG() function returns . The filename for your database backup. Backups stored in several servers on disks or tapes that do not hold security protection.

INNER JOIN, years ago. W3SchoolsDemoDatabaseNorthwindLT. Here is the php script being used to generate the backup. This backs up the database to a file called BobBackup.

We only assume some general . Trigger: A trigger is a stored procedure in database which automatically invokes whenever a special event in the database occurs. For example, a trigger can be . Backup mechanism makes backup copies at a specific interval for the database. Logging facilities keep tracing the current state of transactions and any changes . The mysqldump program is used to copy or back up tables and databases.

As ever ensure that you make a secure backup before making any. CRUD operations create .