Jun 21, 2016 · ALTER TABLE [dbo.table_name] ADD [Column_Name] BIT NOT NULL Default ( 0 ) Here is another way to add a column to an existing database table with a default value. A …

Mar 3, 2015 · In MS Access, I want to insert a new column into the returned result of a select query. The new column has the same value for every row. For example, my select returns …

Mar 30, 2014 · Works for T-SQL as well, excellent and simple solution. Reduces two columns into one.

Sep 7, 2012 · In PostgreSQL, I want to use an SQL statement to combine two columns and create a new column from them. I'm thinking about using concat(...), but is there a better way?

Dec 19, 2022 · I need to add a column to my SQL Server table. Is it possible to do so without losing the data, I already have?

Dec 13, 2023 · Plus, if in the future you decide you want to change how CustomerName gets built, you just re-create the computed column with a different expression. You can even use …

Jul 14, 2014 · 26 I have an employees table and I want to add a third column valued as the concatenation of the first and last name called "FullName". How can I accomplish that without …

MySQL combine two columns and add into a new column Asked 14 years, 8 months ago Modified 1 year, 6 months ago Viewed 155k times

May 28, 2017 · I want have a query with a column that is a hardcoded value not from a table, can this be done? I need it basically as a placeholder that I am going to come back to later and fill …

Jul 1, 2015 · I need the second column of the table retrieved from a query to have a count of the number of rows, so row one would have a 1, row 2 would have a 2 and so on. I am not very …