A doubt related to DML commands in DBMS.

Question

3.00/5 (2 votes)

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SQL-Server-2005

Hi all,

We all know that DML commands are Data manipulation commands in DBMS.
DML commands: used for data manipulations in database tables.

SELECT

DELETE

UPDATE

INSERT

why the SELECT Command is categorised into DML When We know that it is just used to select data from database table and no data manipulations involved..
ANY REASON......??

Posted 2-Jul-11 0:18am

aa8716

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3 solutions

Solution 1

Most developers think of SQL in terms of the DML-Data Manipulation Language: the Delete, Insert, Update and particularly the Select statements. And truly Select provides a lot of retrieval power with joins to other tables, grouping, nested subselects and other retrieval goodies. Again, it is very instructive to see how closely the major vendors have adhered to the SQL'99 standard; but there are some variations. Just enough to cause a nuisance for interoperability purposes.

Thanks.

Posted 2-Jul-11 0:34am

CS1401

Solution 2

Actually Select is not a part of DML but CRUD(C-Create/Insert,R-Read/Select,U-Update,D-Delete)

Select Command is belongs DRL(Data Retreival Language)-(It doesn't affect on state of DB (here state indicates number of rows affected))-so We also call Select as Non action query.
DML - Insert ,Update, Delete (these three are change the state of database)We also call them as action queries.

By
Ramakrishna Alla

Posted 2-Jul-11 0:48am

Ramakrishna Alla

Updated 2-Jul-11 2:23am

v5

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aa8716 · Accepted Answer · 2011-07-02T02:56:00

Solution 3

Hi Ramakrishna Alla,

You have made very good classification of DML commands depending on thier action on database table.

Thank You for Sharing your answer...

Posted 2-Jul-11 2:56am

aa8716