Top "Default-constraint" questions

What does the Alter Table syntax look like for adding a DATETIME column?

I can't find what the syntax looks like for adding a DATETIME column to a mysql table when I want …

sql mysql alter-table default-constraint
default a column with empty string

Is there a way, via a SQL statement, to ensure a column's default value is an empty string '' instead …

sql mysql default-constraint
Command for adding a default constraint

There appears to be at least two ways to add a default constraint using straight T-SQL. Am I correct that …

sql sql-server tsql default-constraint
How to add a default value to an already existing column?

I have an existing column in my SQL Server database. I have tried about everything I can think of but …

sql sql-server tsql alter-table default-constraint
mysql "datetime NOT NULL DEFAULT '1970-01-01' " gets turned to 0000-00-00 00:00:00

I have a column created as `date_start` datetime NOT NULL DEFAULT '1970-01-01' However when I upload …

sql mysql load-data-infile default-constraint
SqlBulkCopy into table that Default column values fails when source DataTable row has DBNull.Value

Update: Here is my solution I have a table defined as: CREATE TABLE [dbo].[csvrf_References] ( [Ident] [int] IDENTITY(1,1) NOT …

c# sql-server null sqlbulkcopy default-constraint
how to remove default constraint from column in Db2

I had a table STUDENT_TB, which had column STUDENT_ID, NAME, AGE. I added a column with a following …

sql db2 default-constraint
How to set another value on a boolean with defaut value with Entity Framework Core?

I got quite the same problem in this question : How to override SQL Server default value constraint on a boolean …

c# sql-server boolean entity-framework-core default-constraint
How to get EF 6 to handle DEFAULT CONSTRAINT on a database during INSERT

I am new to EF (its my first week), but not new to databases or to programming. Others have asked …

c# sql-server entity-framework default-constraint