SQL view supports a variety of different data types. For example, if you create a column that can only store numbers, you must assign it a specific data type that will only allow numbers to be stored in the column. PictureMemoryStream.Read(BLOBData, 0, PictureMemoryStream.Length)Ī("ID", 7)Ī("BLOBData", OleDbType.LongVarBinary, BLOBData.Length, DataRowVersion.Current).Value = BLOBDataĪ("BLOBData", OleDbType.LongVarBinary, BLOBData.Length, DataRowVersion.Current). A data type specifies the type of data a column can store. PictureBox (sans OLE header): Dim AccessConnection As New OleDbConnection("Provider=.4.0 " & _ĭim AccessCommand As New OleDbCommand("INSERT INTO BlobTable (ID, BLOB) " & _ĭim PictureMemoryStream As MemoryStream = New MemoryStream()į(PictureMemoryStream, .Jpeg)ĭim BLOBData(PictureMemoryStream.Length - 1) As Byte For example, you could use something like the following to store an image into a Access table from a You must assign a field data type to each field in a table unless you want to use the text data type that. Notice we used capitalised words for True and.
In VBA you can assign a Boolean variable to True (-1) or False (0) or the numbers indicated in the brackets.
These are often thought of as states and correspond to Access’s Yes/No fields. MS Access - Data Types Short Text, Text or combinations of text and numbers, including numbers that do not require calculating (e.g. For a table you should use an OLE Object. A variable of type Boolean is the simplest possible data type available in VBA. Enter the field name by placing the pointer in the first row of the Table. Depends upon whether you are referring to a variable or the data type of the column in which to store the data. field name requirements Discuss types of data used in Microsoft Access.