DbExecuteScalar Method

Executes the query, and returns the first column of the first row in the result set returned by the query.Additional columns or rows are ignored.

Syntax

[OperationContract()]
string DbExecuteScalar( 
   string query,
   OrderedDictionary param,
   DbProvider provider,
   string connectionString,
   bool throwExceptions
)

Parameters

query: SQL query
param: Query parameters
provider: Provider type
connectionString: Connection string
throwExceptions

Return Value

The first column of the first row in the result set or empty string

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

IInstanceManagerService Interface
IInstanceManagerService Members