ado

问题 I have a VB6 application in front of me, which accesses Sql Databases via ADO. When retrieving recordsets, the application uses the Bang (!) operators to access the fields in the recordsets Eg RS!OrderId. Whilst I am aware of this practice, I have never actually used it(except when I have been lazy), Neither have I used RS("OrderId") as I have always (or usually) used the fully qualified method (eg RS.fields("OrderId").value. or even expanded it further using the .Item Property.) Both return

问题 I am trying to display students in a datagrid that have "yes" as active. If the student has "no" as active, the form has to hide it and only show the students with "yes". The problem that I am recieving now is Syntax error in FROM clause. code: Private Sub Form_Load() Dim sql As String connSearch.Open connstr Adodc1.ConnectionString = conn.connstr sql = "select * from Table1 where Active <>" & "'No'" Adodc1.RecordSource = sql Set StudentTable.DataSource = Adodc1 Adodc1.Refresh Adodc1.Visible

问题 I am trying to display students in a datagrid that have "yes" as active. If the student has "no" as active, the form has to hide it and only show the students with "yes". The problem that I am recieving now is Syntax error in FROM clause. code: Private Sub Form_Load() Dim sql As String connSearch.Open connstr Adodc1.ConnectionString = conn.connstr sql = "select * from Table1 where Active <>" & "'No'" Adodc1.RecordSource = sql Set StudentTable.DataSource = Adodc1 Adodc1.Refresh Adodc1.Visible

问题 We can set up the connection string for ADO connection using either currentproject.connection or using a DSN ( DSN=MyDSN;UID=MyID;PWD=MyPwd ) or DSN-Less connection string( DRIVER=\{SQL Server\};SERVER= MyServer;DATABASE=pubs; UID=MyID;PWD=MyPwd) My question is specifically in the case of linked tables connected to SQL Server. I have a DSN-less linked tables connected to SQL Server backend. I used this code provided by microsoft to create the DSN-less connection. If I do debug.print

问题 We can set up the connection string for ADO connection using either currentproject.connection or using a DSN ( DSN=MyDSN;UID=MyID;PWD=MyPwd ) or DSN-Less connection string( DRIVER=\{SQL Server\};SERVER= MyServer;DATABASE=pubs; UID=MyID;PWD=MyPwd) My question is specifically in the case of linked tables connected to SQL Server. I have a DSN-less linked tables connected to SQL Server backend. I used this code provided by microsoft to create the DSN-less connection. If I do debug.print

问题 I want to upload data in to an Access database from csv files using Vb Script & ADO so I don't have to open either Access or Excel. So Far I have a working script below, but is there a better way to upload the data in one batch without having to create a record set and loop through each record? I've created an example where I have 2 raw data files (csv) the file People.csv contains the fields 'PERSON' and 'COMPANY' and the other file contains 'COMPANY' and 'STATUS'. The database to be updated

问题 I'm using ADO, and getting a very weird com error. So I'm simply running a stored proc using ADO CommandPtr, and storing it in a Recordset. Here is what I'm doing: _ConnectionPtr Connptr; //Instantiate ConnectionPtr... _CommapndPtr CommPtr; CommPtr.CreateInstance(__uuidof(Command)); CommPtr->CommandType = adCmdText; CommPtr->ActiveConnection = ConnPtr; CommPtr->CommandText = "Execute MyDb..MyStoredProc"; _RecordsetPtr RecPtr; RecPtr.CreateInstance(__uuidof(Recordset)); RecPtr->CursorLocation

问题 I'm using ADO in a JScript (Microsoft JavaScript dialect) Windows Scripting Host script to update a SQL Server table. I'd like to get the number of rows affected by the update in the script, but JavaScript doesn't have pass-by-reference and so I can't do the usual thing where I receive the records affected from the Command#Execute function's RecordsAffected argument. So I'm looking for the best way to get that info. For reasons not related directly to this query, I want to avoid using a

问题 I am trying to create some VBA code to automate dashboard creation against a PostgreSQL database. I have heard the OLE DB driver is unreliable and it looks like it hasn't been touched in several years. Does ADO work with an ODBC driver? 回答1: Yes, simply reference the DSN: oConn.Open "DSN=mySystemDSN;" & _ "Uid=myUsername;" & _ "Pwd=myPassword" 来源： https://stackoverflow.com/questions/9187811/does-ado-work-with-odbc-drivers-or-only-ole-db-providers

问题 I have an application that runs fine on Windows 7 but is failing on Server 2003. The line that fails is the third line below _ConnectionPtr pConnection = NULL; ::CoInitialize(NULL); HRESULT hr = pConnection.CreateInstance(__uuidof(Connection)); The HRESULT returned is 0x80004002 (Interface not supported). Both machines have the MDAC installed and I can't see why I am getting this error. Any reasons this might be happening? 回答1: This might help... An ADO application does not run on down-level