"AddEvent" 存储过程

This 存储过程 adds a new event to the database for a specific module in the portal. The input parameters include title, location, expiration date and description for the event, and the output parameter is the ItemId of the new database record.

    
    CREATE PROCEDURE AddEvent
    (
        @ModuleID    int,
        @UserName    nvarchar(100),
        @Title       nvarchar(100),
        @ExpireDate  DateTime,
        @Description nvarchar(2000),
        @WhereWhen   nvarchar(100),
        @ItemID      int OUTPUT
    )
    AS

    INSERT INTO Events
    (
        ModuleID,
        CreatedByUser,
        Title,
        CreatedDate,
        ExpireDate,
        Description,
        WhereWhen
    )

    VALUES
    (
        @ModuleID,
        @UserName,
        @Title,
        GetDate(),
        @ExpireDate,
        @Description,
        @WhereWhen
    )

    SELECT
        @ItemID = @@Identity
        

Events:  Each record in the Events table is a single item, as displayed by the Events Portal Module. Since all Events modules store their record in this table, each item contains a ModuleID to permit related items to be retrieved in a single query.

The primary key in this table is the ItemID identity field. Note that event descriptions are limited to 2000 characters.