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Is there a way to get the row number in Mysql like the rownum in oracle, If not then is there any indirect way of doing it? please suggest.
953
MySQL doesn't support ROWNUM() function, but it since version 8.0, MySQL introduced ROW_NUMBER() function as an equivalent to return the number of the current row within its partition during data retrieval. Rows numbers range from 1 to the number of rows in the partition.
Notice that MySQL has supported the ROW_NUMBER() since version 8.0. If you use MySQL 8.0 or later, check it out ROW_NUMBER() function. Otherwise, you can continue with the tutorial to learn how to emulate the ROW_NUMBER() function.
Yes, every table has a ROWID column, but it is hidden and will only show in a SELECT statement if requested.
From a little reading, ROWNUM is a value automatically assigned by Oracle to a rowset (prior to ORDER BY being evaluated, so don't ever ORDER BY ROWNUM or use a WHERE ROWNUM < 10 with an ORDER BY ). ROW_NUMBER() appears to be a function for assigning row numbers to a result set returned by a subquery or partition.
Until MySQL finally supports modern SQL, the only way to get something similar is this:
SELECT @rownum:=@rownum + 1 as row_number,
t.*
FROM (
< your original query goes here >
) t,
(SELECT @rownum := 0) r
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