I have been trying to add columns to a table using some logic that produces this statement: ALTER TABLE Master_List
I have an existing column in my SQL Server database. I have tried about everything I can think of but can not get a default value to be added to the column. What work开发者_Python百科s in every other
A show create table command shows the following: \'columnA\' varchar(6) NOT NULL DEFAULT \'\'; How do I modify that column so that the not null is removed?
Im a bit new to T-SQL, Coming from a MySQL background Im still adapting to the different nuances in the syntax.
I need the ability to add F开发者_开发问答TS3 to a sqlite3 table after it was created, not as it is created.Does anyone know the ALTER syntax to accomplish this?SQLite does not support altering a tabl
I have a column with the type of Varchar in my Postgres database which I meant to be integers... and now I want to change them, unfortunately this doesn\'t seem to work using my rails migration.
I need to modify a column in a SQLite database but I have to do it programatically due to the database already being in production.From my research 开发者_如何学运维I have found that in order to do th
Please help I am in major trouble with our production database. I had acci开发者_StackOverflow社区dentally inserted a key with a very large value into an autoincrement column, and now I can\'t seem to
I have a table in MySQL that has a primary key: mysql> desc gifts; +---------------+-------------+------+-----+---------+-------+
Query was this: CREATE TABLE `query` ( `id` int(11) NOT NULL auto_increment, `searchquery` 开发者_开发知识库varchar(255) NOT NULL default \'\',
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