sql server - Adding a sequence number to existing rows
Jul 30, 2014 · I don't really have to use row_number () as i'm only planning to have a increment number that starts from 0, i'm a novice with sql, that table is actually a child table with maybe …
Adding a ROW_NUMBER () with no column to ORDER BY?
So I'm working on a code golf puzzle and need to add an INT "number" column n to a result while maintaining the current order. Let's say my source data is: SELECT value FROM …
sql server - Why are numbers tables "invaluable"? - Database ...
Jan 25, 2012 · In general, whenever in an imperative language you would use a for loop with a well known number of iterations, the declarative and set nature of SQL can use a trick based …
Datatype for phone number: VARCHAR, INT or BIGINT?
Dec 25, 2015 · Take a look to the following table definition: Take a look at the column from_number which is a VARCHAR(45) right now but it will hold a phone number. Since I don't …
How do I count the number of columns in each table?
Feb 16, 2016 · How do I count the number of columns in each table? Ask Question Asked 9 years, 10 months ago Modified 5 years, 8 months ago
Update existing rows with squence number/char or any unique data
May 21, 2012 · I added a new column in the Table X This column "cn" has to be unique and mandatory, but old data don't have any value. How to update the existing records with …
How do I create a table with a column that uses a sequence?
Nov 13, 2013 · 13 I have the following CREATE TABLE [MyTable] ( [ID] [bigint] PRIMARY KEY NOT NULL, [Title] [nvarchar](64) NOT NULL ) CREATE SEQUENCE MyTableID START …
Best approach for populating date dimension table
DayOfWeek_Number AS DATEPART(WEEKDAY, [date]) PERSISTED ); Results: Msg 4936, Level 16, State 1, Line 130 Computed column 'DayOfWeek_Number' in table 'Test' cannot be …
How to format a phone number in a SELECT statement?
May 17, 2016 · I have a database with table name student. I would like to display the register_number and phone_number of the student. The phone_number should be in the …
How can I generate a row_number without using a window function?
Dec 31, 2016 · In PostgreSQL, how do you generate a row number: WITHOUT a Window Function (like row_number()) WITHOUT a Temp Table Only using a single SELECT Here is …