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DML (Data Manipulation Language)
Coursework Instructions:
One of the components of SQL is DML, the Data Manipulation Language with statements including SELECT, INSERT, UPDATE, and DELETE. When coming up with examples to address the forum question, consider first how each would be used, and then how each might be enhanced. For example, SELECT has a specific function, but what kinds of clauses or aggregates make it even more powerful? And how could this be used in an organization using our data?
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Data Manipulation Language
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Data Manipulation Language (DML)
A data manipulation language (DML) is a line of computer languages including commands allowing users to manipulate data in a database. This manipulation includes inserting data into database tables, recovering existing data, removing data from existing tables, and modifying existing data. In Structured Query Language (SQL) databases, DML is mostly incorporated.
DML makes simple English language and improves effective user interaction with the system. The functional credentials of DML are systematized in manipulation commands like SELECT, UPDATE, INSERT INTO and DELETE FROM, as delineated below:
* SELECT: This command is used to get back rows from a table. It is processed as SELECT DISTINCT item(s); FROM table(s); WHERE predicate; GROUP BY field(s); ORDER BY fields.
Syntax: SELECT [column name(s)] from [table name] where [conditions].
* UPDATE: This command distorts data of one or more reports.
Syntax: UPDATE [table name] SET [column name = value] where [condition].
* INSERT: This command adjoins one or more records to ...
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