ms-access

问题 Hi guys I'm trying to use unpivot in SQL on MS Access and I found the following code online: SELECT CustomerID, Phone FROM ( SELECT CustomerID, Phone1, Phone2, Phone3 FROM dbo.CustomerPhones ) AS cp UNPIVOT ( Phone FOR Phones IN (Phone1, Phone2, Phone3) ) AS up; from this webpage: https://www.mssqltips.com/sqlservertip/3000/use-sql-servers-unpivot-operator-to-help-normalize-output/ However when I tried the exact same code on Access, it keeps saying the FROM clause has an error. I wonder if

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 Similar to this question: How do I query for all the nodes between two nodes in a tree? But I do not have a closure (flattened) table, a child can have many parents, and ID traversal is not necessarily in order. There is no limit to the nesting depth. Assume a circular reference is impossible... I would like to return all rows required to traverse the hierarchy. Assume the following table: ParentID ID RowNumber(Reference) 1 2 1 2 4 2 4 3 3 3 5 4 1 6 5 6 7 6 2 8 7 3 9 8 1 8 9 6 8 10 Given 1

问题 I have 2 tables, Products and ShoppingCart and I would like to update and decrease the product's 'Quantity' of the Products table based on the Product name and Quantity specified in the ShoppingCart. How can i do this? Table: Products Fields: ProductName, ProductQty Table: Shopping Cart Fields: ProductName, ProductQty Access DB 回答1: You should have a product id. However: UPDATE Products p INNER JOIN [Shopping Cart] s ON p.[Product Name] = s.[Product Name] SET p.ProductQty = p.ProductQty - s

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'm trying to do something simple and I don't understand why it's not working. I'm really new to MS Access VBA. I have a string in a textbox : \\p9990cdc\C$\Temp I want to turn it into : C:\Temp I'm trying : strSelectedFile = Replace(strSelectedFile, "\\*\C$", "C:") and it's not working. Not sure why RegEx doesn't work either : strSelectedFile = Replace(strSelectedFile, "\\[\w]\C$", "C:") Everything is set properly so the problem lies exactly in that replace code, because if I try for example

问题 I'm trying to run a query on access using two live CSVs which has a common field with different data types(numbers and short text). I've discovered that you can join different data types using 'CStr'. I've added the 'CStr' to my code on the sql view. Please find the see the code below. This gives me the output i want on access and i can now see the output when i click on 'datasheet view'. However, when i try to export the data (i'm actually trying create a export specification so that i can

问题 I have 2 similar queries that both look like this with only the table being switched from Treatment to Patient in the second query: SELECT Treatment.Phys_ID AS Phys_ID, Physician.FName, Physician.LName, Sum(Treatment.Charge) AS TotCharge FROM Physician INNER JOIN Treatment ON Physician.Phys_ID = Treatment.Phys_ID GROUP BY Treatment.Phys_ID, Physician.FName, Physician.LName; The output of both is: Phys_ID___FName___LName____TotCharge When combined, I need to add the 2 queries' columns of