Add a column with Not Null
158698
Adding columns to production tables
21297
NULL values inside NOT IN clause
55963
One query to insert multiple rows with multiple columns
104501
How do I enforce null checking?
102608
WITH ROLLUP WHERE x IS NULL
57315
Trying to add a column of Mysql timestamp through hook_update
94839
Check whether a string is not null and not empty
43769
How do I Parameterize a null string with DBNull.Value clearly and quickly
69613
How do I add a condition to a query?
48091
Do nullable columns occupy additional space in PostgreSQL?
2141
how do I insert a default row?
45771
Add (insert) a column between two columns in a data.frame
55022
How to exclude a column from SELECT query?
138106
Inserting data with SELECT into new column
98152
SQL Convert column to row
12051
Add column with counts of another
149602
One to at most one relation or multiple null columns?