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What is a “batch”, and why is GO used?
...GO from the following ones in order to work.
For example, you can't drop a table and re-create the same-named table in a single transaction, at least in Sybase (ditto for creating procedures/triggers):
> drop table tempdb.guest.x1
> create table tempdb.guest.x1 (a int)
> go
M...
Store JSON object in data attribute in HTML jQuery
... delete button (each button gets a different json object...) I have in the table by putting in the hmtl tag like I showed above. Is what you're suggesting going to allow me to associate each object with to the corresponding delete button? How would I do that, how would I use $('#myElement'). in the ...
Add column to SQL Server
I need to add a column to my SQL Server table. Is it possible to do so without losing the data, I already have?
5 Answers...
How can I rename a database column in a Ruby on Rails migration?
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rename_column :table, :old_column, :new_column
You'll probably want to create a separate migration to do this. (Rename FixColumnName as you will.):
script/generate migration FixColumnName
# creates db/migrate/xxxxxxxxxx_fix_column_name....
Storing sex (gender) in database
...the 'closest' data type would be tinyint with a CHECK constraint or lookup table as appropriate.
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Difference between database and schema
... between a Database and a Schema in SQL Server? Both are the containers of tables and data.
5 Answers
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File Upload ASP.NET MVC 3.0
...inaryStream : Stream {
private SqlConnection _Connection;
private string _TableName;
private string _BinaryColumn;
private string _KeyColumn;
private int _KeyValue;
private long _Offset;
private SqlDataReader _SQLReader;
private long _SQLReadPosition;
private bool _AllowedToRead = false;
public...
Create code first, many to many, with additional fields in association table
... not possible to create a many-to-many relationship with a customized join table. In a many-to-many relationship EF manages the join table internally and hidden. It's a table without an Entity class in your model. To work with such a join table with additional properties you will have to create actu...
How to select unique records by SQL
When I perform "SELECT * FROM table" I got results like below:
8 Answers
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Recommended SQL database design for tags or tagging [closed]
I've heard of a few ways to implement tagging; using a mapping table between TagID and ItemID (makes sense to me, but does it scale?), adding a fixed number of possible TagID columns to ItemID (seems like a bad idea), Keeping tags in a text column that's comma separated (sounds crazy but could work)...