MySQL – Get row number on select
Take a look at this. Change your query to: The last select is your count.
Take a look at this. Change your query to: The last select is your count.
I want the row with the single highest col3 for each (col1, col2) pair. That’s a groupwise maximum, one of the most commonly-asked SQL questions (since it seems like it should be easy, but actually it kind of isn’t). I often plump for a null-self-join: “Get the rows in the table for which no other … Read more
From the Oracle docs ROWID Pseudocolumn For each row in the database, the ROWID pseudocolumn returns the address of the row. Oracle Database rowid values contain information necessary to locate a row: The data object number of the object The data block in the datafile in which the row resides The position of the row … Read more