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Add a column to existing table and uniquely number them on MS SQL Server
...the database but for SQL Server, this could be achieved as follows:
alter table Example
add NewColumn int identity(1,1)
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Populating a database in a Laravel migration file
... just learning Laravel, and have a working migration file creating a users table. I am trying to populate a user record as part of the migration:
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How to truncate a foreign key constrained table?
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You cannot TRUNCATE a table that has FK constraints applied on it (TRUNCATE is not the same as DELETE).
To work around this, use either of these solutions. Both present risks of damaging the data integrity.
Option 1:
Remove constraints
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Is it fine to have foreign key as primary key?
I have two tables:
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Modify table: How to change 'Allow Nulls' attribute from not null to allow null
How to change one attribute in a table using T-SQL to allow nulls (not null --> null)? Alter table maybe?
8 Answers
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Altering a column to be nullable
I want to alter a table column to be nullable. I have used:
10 Answers
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Changing the maximum length of a varchar column?
...characters to 500 without losing the contents. I've dropped and re-created tables before but I've never been exposed to the alter statement which is what I believe I need to use to do this. I found the documentation here: ALTER TABLE (Transfact-SQL) however I can't make heads or tails of it.
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CSS display: table min-height not working
...e know I can make min-height work with the latest browsers? I am using CSS tables and it seems to ignore min-height.
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How can I join multiple SQL tables using the IDs?
I have 4 different tables that I want to join. The tables are structured with columns as follows:
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Only read selected columns
...hs (7 columns) for each year of the data below, for example by using read.table() ?
4 Answers
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