DBMS
Control the databaseThe database needs a lot of control.・Keep the data consistent.・Prepare for system failures.etc.The software required for them is a DBMS (DataBase Management System).（１）The Role of DBMS・Define a Database.・Use the data efficiently.・Share a database.・Deal with database failures.・Respond to database confidentiality.・Provide a SQL that can access the database（２）The function of DBMSI will introduce two functions of DBMS.①Transaction management functionDatabase updates are managed on a transaction-by-transaction. A transactionis a collection of several processes. For example, suppose you sell 3 cannedcoffees at a convenience store. At this time,・Record sales data for 3 canned co
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