According to the SQLite documentation / FAQ a column declared INTEGER PRIMARY KEY will automatically get a value of +1 the highest of the column if omitted. Using SQLite version 3.22.0 2018-01-22 1...

consider this simple table(tbl1): A|first letter B|second letter C|third letter first column is letter and second column is desc I can do this query without any problem: select * from tbl1 whe...

Is it bad to have text as a primary key in an SQLite database? I heard that it's bad for performance reasons, is this true? And will the rowid be used as the actual primary key in such a case...

I have two different CF11 applications with two different datasources each with its own back-end schema on the same Oracle 12g database. In one datasource dsA, when I use CFQUERY to insert a new re...

I'd like to know difference between rowID and rowNUM And how to see both of these in our table. when I execute this: SELECT * FROM emp WHERE rownum=1 It returns one query but when I do the sam...

is there an equivalent of oracle's rowid in mysql? delete from my_table where rowid not in (select max(rowid) from my_table group by field1,field2) I want to make a mysql equivalent of this query...

I have a table that has a lot of duplicated rows and no primary key. I want to remove just the duplicated records, but when I try to do this it would remove all peers. How can I find the ROWID fro...

I am trying to import some spatial data (OSM) into an SQLite database. The SQLite reference states that an INTEGER PRIMARY KEY becomes an alias for the rowid (if WITHOUT ROWID is not specified). Ju...

What's the equivalent of Oracle's RowID in SQL Server?

What is the data type of ROWID in Oracle/SQL? How is this value stored?

My understanding is that the ROWID is a unique value for each row in the result returned by a query. Why do we need this ROWID? There is already the ROWNUM in ORACLE. Have any one used ROWID in a...

In the SQLite documentation it says: The parent key of a foreign key constraint is not allowed to use the rowid. The parent key must used named columns only. The parent key must be a named c...

I have one table CSBCA1_5_FPCIC_2012_EES207201222743, having two columns employee_id and employee_name I have used following query SELECT ROW_NUMBER() OVER (ORDER BY EMPLOYEE_ID) AS ID, EMPLOYEE...

I am trying to display the RowID alongside all columns from a Select * statement. I am using Oracle with Toad to run the SQL statement. I have two tables that I need to compare, but I do not have...

I'm making a wrapper of SQLite C API. And I want to return rowid as integer type. To mark error case, I need a invalid value of the rowid. Is there invalid value of SQLite rowid? Or all values in s...

Oracle's database change notification feature sends rowids (physical row addresses) on row inserts, updates and deletes. As indicated in the oracle's documentation this feature can be used by the a...

In database, such as Informix, DB2, Oracle etc, will the rowid be reused pls?

AFAIK ROWID in Oracle represents physical location of a record in appropriate datafile. In which cases ROWID of a record may change ? The one known to me is UPDATE on partitioned table that "moves...