Monday, 9 July 2012

Lesson03: SQL Server - Create a Table

This lesson demonstrates how to create a table in a SQL Server database using SQL Server Management Studio (SSMS).
  1. Ensuring you have the right database expanded, right click on the "Tables" icon and select "New Table...":

    Creating a table in SQL Server - step 1

  2. While you have this screen open, do the following:
    1. Using the values in the screenshot, complete the details in the "Column Name" column, the "Data Type" c
    2. lumn, "Length" column, and "Allow Nulls" column.
    3. Make the IndividualId column an "identity column", by setting "Is Identity" to "Yes" (this option is under the "Identity Specification" section in the bottom pane). Note that to set values in the bottom pane, you need to select the column name in the top pane first). This column is going to be an auto-number column - it will contain an incrementing number for each record that is created.
    4. Set the "Default Value" of the DateCreated column to (getdate()). (This will automatically insert the current date into that field for each new record).

    Creating a table in SQL Server - step 2

    What we are doing at this stage, is creating the column names, specifying the type of data that can be entered into them, and setting default values. Restricting the data type for each column is very important and helps maintain data integrity. For example, it can prevent us from accidentally entering an email address into a field for storing the current date.


  3. Save the table by selecting File > Save Table_1:

    Save table as...
  4. When prompted, name your table:

    Creating a table in SQL Server - step 3

Your New Table

Now that you've created a new table, it will appear under your database in the "Tables" section.

Viewing the contents of your table

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