Changing the data in the database
Data can be inserted into database tables, updated or deleted from the database. Respectively, statements are used for this: INSERT, UPDATE and DELETE.
INSERT statement
The
INSERT statement is used to insert new data into tables in the database. The records are always inserted into only one table.
The INSERT statement has the following syntax:
INSERT INTO <table_name> [(<field_list>)]
{VALUES (<expression_list>)[,...]}|{DEFAULT VALUES}|<SELECT query>;The name of the table into which the records are inserted is specified after the INSERT INTO keywords. There are two options for using the INSERT statement, which have different syntax: to insert one or several individual records, or to insert the whole dataset of many records.
To insert several records one should use VALUES clause. The list of the values to insert is specified after the VALUES keyword. Items of the list correspond to the fields of the table according to their order. If it...
