[عبدالله الدوسري]

بعد تعديل الكود أصبح كالتالي :

كود :

conx = New SQLiteConnection(String.Format("Data Source= C:\LOG\{0}\DB{1}.s3db", strcallbk,test))
cmdx = New SQLiteCommand("INSERT INTO DBQTC (station, UTC) Values (@station,@UTC") With {
.Connection = conx}

conx.Open()
cmdx.Parameters.AddWithValue("@station", strcallbk)
cmdx.Parameters.AddWithValue("@UTC", timk)
cmdx.ExecuteNonQuery()

'------------------------------------
cmdx.CommandText = "SELECT SCOPE_IDENTITY()"
Dim NewID As Integer
NewID = cmdx.ExecuteScalar()
'------------------------------------

conx.Close()

الآن المتغير NewID سيحمل قيمة رقم الـ ID الجديد

الإستعلام : SELECT SCOPE_IDENTITY
يقوم بإرجاع آخر رقم ID تم إنشائة 

كما يمكنك إستخدام : SELECT @@IDENTITY




هذا هو الفرق بين SCOPE_IDENTITY وبين IDENTITY@@

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SELECT @@IDENTITY

It returns the last IDENTITY value produced on a connection, regardless of the table that produced the value, and regardless of the scope of the statement that produced the value.

@@IDENTITY will return the last identity value entered into a table in your current session. While @@IDENTITY is limited to the current session, it is not limited to the current scope. If you have a trigger on a table that causes an identity to be created in another table, you will get the identity that was created last, even if it was the trigger that created it.

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SELECT SCOPE_IDENTITY()

It returns the last IDENTITY value produced on a connection and by a statement in the same scope, regardless of the table that produced the value.

SCOPE_IDENTITY(), like @@IDENTITY, will return the last identity value created in the current session, but it will also limit it to your current scope as well. In other words, it will return the last identity value that you explicitly created, rather than any identity that was created by a trigger or a user defined function.

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