How to create database in SQL and uses insert delete update ?
SQL-based applications make changes to tables by executing the UPDATE, DELETE, and INSERT statements. These statements are part of the Minimum SQL grammar conformance level and must be supported by all drivers and data sources.
The syntax of these statements is:
UPDATE table-name
SET column-identifier = {expression | NULL}
[, column-identifier = {expression | NULL}]...
[WHERE search-condition]
DELETE FROM table-name[WHERE search-condition]
INSERT INTO table-name[(column-identifier [, column-identifier]...)]
{query-specification | VALUES (insert-value [, insert-value]...)}
Note that the query-specification element is valid only in the Core and Extended SQL grammars, and that the expression and search-condition elements become more complex in the Core and Extended SQL grammars.
The INSERT statement introduces new rows into an existing table.
The DELETE statement removes a row or combination of rows from a table.
The UPDATE statement enables users to update a row or group of rows in a table.
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