Modifying Data

After Connecting from VBA, you are ready to update Parquet from macros. The following sections show how to execute parameterized queries to update data. See Executing Parameterized Queries for a complete macro.

Insert

Call the Insert method to execute SQL INSERT statements.

public bool Insert(string queryString, object paramNames, object paramValues)

The Insert method returns a boolean indicating the success or failure of the statement execution and accepts the following parameters:


queryString	The query to execute; for example, INSERT INTO SampleTable_1 (Column1) VALUES ('John')
paramNames	An array with the named parameters used in the query. Required if using a parameterized query.
paramValues	An array with the values that correspond to the parameter names. Required if using a parameterized query.

The following example inserts the values specified in the parameter arrays and displays a message box indicating the success or failure of the INSERT.

Dim nameArray
nameArray = Array("Column1", "Column2")
Dim valueArray
valueArray = Array("Jon Doe", "Bob")
Dim module As New ExcelComModule
module.SetProviderName ("Parquet")
module.SetConnectionString ("URI=C:\folder\table.parquet;")
Query = "INSERT INTO SampleTable_1 (Column1, Column2) VALUES (@Column1, @Column2)"
If module.Insert(Query, nameArray, valueArray) Then
  MsgBox "The insertion was successful."
  'lastInsertedRowIdentity = GetLastInsertedRowIdentity(module)
  'MsgBox lastInsertedRowIdentity
Else
  MsgBox "The insertion failed."
End If
module.Close

For a successful insertion, and if SCOPE_IDENTITY() is supported by the Parquet provider, then the following VBA function example can be called to retrieve the last inserted row identity.

Function GetLastInsertedRowIdentity(module) As String
  Dim lastInsertedRowIdentity As String
  lastInsertedRowIdentity = ""
  If module.Select("SELECT SCOPE_IDENTITY()", prmNames, prmValues) Then
    lastInsertedRowIdentity = module.GetColumnValue(0)
  End If
  GetLastInsertedRowIdentity = lastInsertedRowIdentity
End Function

Excel Add-In for Parquet

Modifying Data

Insert