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Constructor SqlCacheDependency

SqlCacheDependency(String, String)

Initializes a new instance of the SqlCacheDependency class, using the supplied connection string and query string.

Declaration
public SqlCacheDependency(string connectionString, string cmdText)
Parameters
Type Name Description
System.String connectionString

connection string to be used by dependency.

System.String cmdText

cmdText to be used by dependency.

Remarks

This constructor is used to create SqlCacheDependency objects that use the query-notification feature of SQL Server 2005 products.

SQL query must include the following:

SqlCacheDependency(String, String, SqlCommandType, Dictionary<String, SqlCmdParams>)

Initializes a new instance of the SqlCacheDependency class. It supports the use of 'Stored Procedures'.

Declaration
public SqlCacheDependency(string connectionString, string cmdText, SqlCommandType cmdType, Dictionary<string, SqlCmdParams> cmdParams)
Parameters
Type Name Description
System.String connectionString

Connection string to be used by dependency.

System.String cmdText

CmdText to be used by dependency.

SqlCommandType cmdType

The type of the command. (text/stored procedure)

System.Collections.Generic.Dictionary<System.String, SqlCmdParams> cmdParams

Parameters to be passed to the command.

Remarks

This constructor is used to create SqlCacheDependency objects that use the query-notification feature of SQL Server 2005 products.

SQL query must include the following:

  1. Fully qualified table names, including the name of the table owner. For example, to refer to a table called "customers" that is owned by the database owner, the SQL statement must refer to "dbo.customers".
  2. Explicit column names in the Select statement. You cannot use the asterisk (*) wildcard character to select all columns from a table. For example, instead of "select * from customers", you must use "select name, address, city, state from dbo.customers".

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