我试图弄清楚如何根据这个答案在 sqlite3 数据库中进行多次插入
它似乎工作得很好，但我有一个问题：我的表有 9 列 + 通常的 ID 是“主键自动增量不为空”......总共 10 列。
如果我使用上述主题中指示的语句，则它仅在我指定 ID 时才有效。
如果我在语句中省略 ID，它会给我错误“SQLite 错误表权重有 10 列，但提供了 9 个值”
如果我进行一次插入并且我省略了 ID，它当然会自动给出下一个默认值。
如何省略此多次插入的 ID？
我不知道这是否相关，但我正在 Windows CE 6 上的紧凑框架 3.5 上编程。
谢谢
'DATABASE WEIGHT COLUMNS NAME
Private Const DBWGTIdLotto = "IDLotto"
Private Const DBWGTProgressive = "ProgressiveNum"
Private Const DBWGTWeight = "Weight"
Private Const DBWGTTime = "theTime"
Private Const DBWGTStatusFlag = "StatusFlag"
Private Const DBWGTTot1 = "Tot1"
Private Const DBWGTTot2 = "Tot2"
Private Const DBWGTTot3 = "Tot3"
Private Const DBWGTPrice = "Price"
'CREATE THE DATABASE
Public Sub CreateDatabaseWeights()
Try
If Not File.Exists(Me.DatabasePesatePath) Then
'Crea la tabella
Dim sqlString As String = "CREATE TABLE " + DatabasePesateTableName + "(" _
+ "id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, " _
+ DBWGTIdLotto + " INTEGER NOT NULL, " _
+ DBWGTProgressive + " INTEGER NOT NULL, " _
+ DBWGTWeight + " INTEGER, " _
+ DBWGTTime + " TIMESTAMP, " _
+ DBWGTStatusFlag + " INTEGER, " _
+ DBWGTTot1 + " BOOLEAN, " _
+ DBWGTTot2 + " BOOLEAN, " _
+ DBWGTTot3 + " BOOLEAN, " _
+ DBWGTPrice + " REAL" _
+ ");"
Dim db As New SQLiteDatabase(Me.DatabasePesatePath)
db.ExecuteNonQuery(sqlString)
End If
Catch ex As Exception
AggiungiErrore("CLASS: RecordPeso => CreateDatabaseWeights: " + ex.Message)
End Try
End Sub
'SUB TO INSERT MULTIPLE RECORDS
Public Sub AggiungiPeso(ByVal lotto As Integer, ByVal progressive As Integer, ByVal weight As Integer, ByVal flag As Byte, ByVal tot1 As Boolean, ByVal tot2 As Boolean, ByVal tot3 As Boolean, ByVal price As Single)
Try
Dim test(100) As Dictionary(Of String, String)
For i As Integer = test.GetLowerBound(0) To test.GetUpperBound(0)
'Crea il dizionario con i valori
Dim data As New Dictionary(Of String, String)
data.Add("id", i.ToString) 'IF I REMOVE THIS, IT GIVES ERROR !!!!!!!!!!!!!!
data.Add(DBWGTIdLotto, lotto.ToString)
data.Add(DBWGTProgressive, progressive.ToString)
data.Add(DBWGTWeight, weight.ToString)
data.Add(DBWGTTime, Now.ToString)
data.Add(DBWGTStatusFlag, flag.ToString)
data.Add(DBWGTTot1, IIf(tot1, "1", "0"))
data.Add(DBWGTTot2, IIf(tot2, "1", "0"))
data.Add(DBWGTTot3, IIf(tot3, "1", "0"))
data.Add(DBWGTPrice, price.ToString)
test(i) = Data
Next
'Salva il nuovo peso
Dim db As New SQLiteDatabase(Me.DatabasePesatePath)
db.MultipleInsert(DatabasePesateTableName, test)
Catch ex As Exception
AggiungiErrore("CLASS: RecordPeso => AggiungiPeso: " + ex.Message)
End Try
End Sub
--------------- DATABASE CLASS --------------------
'Insert a row in the database
'<tableName> Nome della tabella
'<data()> Array di Dizionari con coppie di colonne/valori
'<return> Boolean per successo o fallimento
Public Function MultipleInsert(ByVal tableName As String, ByVal data() As Dictionary(Of String, String)) As Boolean
Dim vals As String = ""
Dim columns As String = ""
Dim returnCode As Boolean = True
Try
'Se abbiamo elementi
If data.Count >= 1 And data(0).Count >= 1 Then
Dim tmpQuery As String = String.Format("INSERT INTO {0} SELECT ", tableName)
'Creo la query per l'aggiornamento
For Each val As KeyValuePair(Of String, String) In data(0)
tmpQuery += String.Format("'{0}' AS '{1}', ", val.Value.ToString, val.Key.ToString)
Next
'Remove last useless comma
tmpQuery = tmpQuery.Substring(0, tmpQuery.Length - 2)
'Aggiorno tutti i valori degli altri dizionari
For i As Integer = data.GetLowerBound(0) + 1 To data.GetUpperBound(0)
'Contatore inizio riga
Dim j As Integer = 0
'Add value of other dictionaries
For Each Val As KeyValuePair(Of String, String) In data(i)
If j = 0 Then tmpQuery += " UNION SELECT"
tmpQuery += String.Format(" '{0}',", Val.Value.ToString)
j += 1
Next
tmpQuery = tmpQuery.Substring(0, tmpQuery.Length - 1)
j = 0
Next
'Aggiorna il DB
Me.ExecuteNonQuery(tmpQuery)
End If
Catch ex As Exception
AggiungiRigaSuFile(ErroriPath, "CLASS: SQLiteDatabase => MultipleInsert: " + ex.Message, True, True)
returnCode = False
End Try
Return returnCode
End Function
'Interact with database for purpose different from query
'<sqlString> SQL string for interacting in DB
'<return> Number of columns updated
Public Function ExecuteNonQuery(ByVal sqlString As String) As Integer
Dim rowsUpdated As Integer = 0
Try
'Definisco la connessione al database
Using cnn As New SQLiteConnection(dbConnection)
cnn.Open()
Dim cmd As New SQLiteCommand(cnn)
cmd.CommandText = sqlString
'Aggiorno i dati
rowsUpdated = cmd.ExecuteNonQuery
End Using
Catch ex As Exception
AggiungiRigaSuFile(ErroriPath, "CLASS: SQLiteDatabase => ExecuteNonQuery: " + ex.Message, True, True)
End Try
'Ritorna le righe elaborate
Return rowsUpdated
End Function