Forum Replies Created

Viewing 15 posts - 256 through 270 (of 432 total)

  • RE: Relation with different possible owners

    I suggest you create a parent "supertype" table for your Announcements, Videos, etc tables. Reference that single parent table from your Tag table. You will find examples of such supertype...

  • RE: FILESTREAM Implementation with a Mapped Drive from LINUX

    The server normally only has access to physical drives and UNC paths. So if you can access your remote drive via a UNC path then yes it ought to be...

  • RE: primary key?

    alexjimm (4/3/2010)


    while creating clustered index on identity column, is a primary key required?

    No. However, IDENTITY columns are generally used as surrogate keys and if you intend the column to be...

  • RE: SAN configuration for SQL databases

    Have you asked your SAN vendor about their recommendations for SQL Server?

  • RE: Difference Between a View and a Stored Procedure

    A view is a derived table defined in declarative code. Think of it as being a variable with a name and a value (the value is the data).

    A stored procedure...

  • RE: SQL Generation

    I like Apex SQL Code for SQL code generation. Codesmith is also very popular.

    http://www.apexsql.com/sql_tools_code.asp

    http://www.codesmithtools.com

  • RE: SQL update data from one table to another

    Dave Schutz (3/26/2010)


    I have 2 tables and first table is updated daily from our accounting app. Second table uses info from first table and needs to have that info updated...

  • RE: design - very important

    I recommend you stay away from Kimball at least until you are confident of enough knowledge and experience to evaluate what he says properly. Personally, I think that most of...

  • RE: Expanding The Scope of Bridge Tables

    David Lean (3/23/2010)


    Too often lazy or inexperienced DB designers automatically create an Identity Column for PK of every table they create. And they fail to ensure the uniqueness of the...

  • RE: Expanding The Scope of Bridge Tables

    Ed-997158 (3/23/2010)


    Thanks. I was just going to ask if "bridge table" didn't already have a different terminology

    "Associative Entity" is semantic modelling terminology and not a relational database term. I've...

  • RE: Normalization

    Tom.Thomson (3/7/2010)


    If something is unknown, it is unknown - end of story. Business stakeholders are generally well aware that there will be things that they don't know and don't want...

  • RE: Overusing Identities

    Jeff Moden (3/10/2010)


    I agree with that... reporting tables are typically denormalized especially when rebuilt on a regular basis.

    I don't think David was suggesting denormalization. He was describing the benefits of...

  • RE: Question about unique constraint

    Am I right in understanding that you want to allow a key value to appear in one of two tables, but not in both? This is sometimes called a "distributed...

  • RE: db design from matrix-table

    CREATE TABLE tbl (km INT NOT NULL, distance INT NOT NULL, price INT NOT NULL, PRIMARY KEY (km,distance));

  • RE: Primary Key VS Clustered Index

    A unique (and non-nullable) index is just SQL Server's method of implementing a candidate key. By creating a unique index you in effect create a key constraint as well. However,...

Viewing 15 posts - 256 through 270 (of 432 total)