檢索存儲過程的統計信息，SelectRows始終爲0

我試圖收集一些SQL查詢的統計信息。我使用RetrieveStatistics（）SqlDbConnection類的方法來獲得統計和的ExecuteReader（）的方法的SqlCommand運行查詢。 RetrieveStatistics（）方法返回填充了執行查詢統計信息的字典。當我運行常規查詢時，SelectRows字典的實體包含查詢返回的實際行數。但是，當我運行存儲過程時，SelectRows始終爲零，儘管reader肯定包含行。檢索存儲過程的統計信息，SelectRows始終爲0

我打電話給ResetStatistics（）之前每個查詢和StatisticsEnabled設置爲true。

這裏是我的PowerShell代碼：

### Stored procedure 

$cn = New-Object system.data.sqlclient.sqlconnection 
$cn.ConnectionString = "Data Source=localhost;Initial Catalog=XXXX;Integrated Security=SSPI" 
$cn.StatisticsEnabled = $true 
$cmd = $cn.CreateCommand() 
$cmd.CommandText = "[dbo].[spGetXXXX]" 
$cmd.CommandType = "StoredProcedure" 
$cn.Open() 
$cmd.ExecuteReader() 
# several rows returned 
$cn.RetrieveStatistics() 

Name       Value 
----       ----- 
BytesReceived     300 
SumResultSets     1 
ExecutionTime     5 
Transactions     0 
BuffersReceived    1 
IduRows      0 
ServerRoundtrips    1 
PreparedExecs     0 
BytesSent      132 
SelectCount     1 
CursorOpens     0 
ConnectionTime     51299 
Prepares      0 
SelectRows      0 
UnpreparedExecs    1 
NetworkServerTime    3 
BuffersSent     1 
IduCount      0 

### Regular SQL query 
$cn2 = New-Object system.data.sqlclient.sqlconnection 
$cn2.ConnectionString = "Data Source=localhost;Initial Catalog=XXXX;Integrated Security=SSPI" 
$cn2.StatisticsEnabled = $true 
$cmd2 = $cn2.CreateCommand() 
$cmd2.CommandText = "SELECT * FROM XXXX" 
$cn2.Open() 
$cmd2.ExecuteReader() 

#rows returned 

$cn2.RetrieveStatistics() 

Name       Value 
----       ----- 
BytesReceived     12357 
SumResultSets     1 
ExecutionTime     12 
Transactions     0 
BuffersReceived    2 
IduRows      0 
ServerRoundtrips    1 
PreparedExecs     0 
BytesSent      98 
SelectCount     1 
CursorOpens     0 
ConnectionTime     11407 
Prepares      0 
SelectRows      112 
UnpreparedExecs    1 
NetworkServerTime    0 
BuffersSent     1 
IduCount      0

來源

2012-08-31 Denis Mitropolskiy

兩個查詢之間的區別是，存儲後過程調用讀者保持開放和行數量的統計不會被更新。

所以正確的代碼會是這樣：

$connectionn.ResetStatistics() 
$reader = $command.ExecuteReader() 
$reader.Close() # ! 
$connection.RetrieveStatistics()

來源

2012-08-31 19:02:36

檢索存儲過程的統計信息，SelectRows始終爲0

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