ms-access

问题 To anyone that can help, thank you in advance. I am running 64bit windows 10, 64bit office and 64bit python 3.7.2 Using pyodbc, I am trying to execute a Select statement such as this: "SELECT * FROM EconVars WHERE Year(ValueDate) = 1999" In order to do this, my code is as follows: existquery = """SELECT * FROM EconVars WHERE Year(ValueDate) = ?""" params = (1999,) cursor.execute(existquery,params) When I run this, I get the following error pyodbc.Error: ('HYC00', '[HYC00] [Microsoft][ODBC

问题 To anyone that can help, thank you in advance. I am running 64bit windows 10, 64bit office and 64bit python 3.7.2 Using pyodbc, I am trying to execute a Select statement such as this: "SELECT * FROM EconVars WHERE Year(ValueDate) = 1999" In order to do this, my code is as follows: existquery = """SELECT * FROM EconVars WHERE Year(ValueDate) = ?""" params = (1999,) cursor.execute(existquery,params) When I run this, I get the following error pyodbc.Error: ('HYC00', '[HYC00] [Microsoft][ODBC

问题 Attempting to copy/paste a 159KB TSQL query into Microsoft Access 2010 passthrough query editor (to a Microsoft SQL Server 2008 backend). This produces pop-up error, "The text is too long to be edited". What is the maximum length of a query in Microsoft Access 2010? 回答1: The help file says that the maximum number of characters in a SQL statement is approximately 64,000. It doesn't mention any difference between pass through queries and other queries, so in the absence of any specific

问题 I have a form with a user created function (See here for function: Adding a file browser button to a MS Access form) to pull a folder path name into a text box. Ideally, I want this text to become a hyperlink that can be opened from a query. However, for all records I have added from the form the hyperlink is not working. I looked in "Edit Hyperlink" for the records and there is no address. Also, I had manually entered some records in before I had made the form and their hyperlinks worked

问题 I have a form with a user created function (See here for function: Adding a file browser button to a MS Access form) to pull a folder path name into a text box. Ideally, I want this text to become a hyperlink that can be opened from a query. However, for all records I have added from the form the hyperlink is not working. I looked in "Edit Hyperlink" for the records and there is no address. Also, I had manually entered some records in before I had made the form and their hyperlinks worked

问题 My Access database displays dates in DD/MM/YYYY format. One row contains date as 07/06/2014 , but my query says "not found". Here is my select query: strSql = "SELECT * FROM Tbl WHERE MyDate = #" & Me.fldFindWhat.Value & "#" MsgBox strSql displays SELECT * FROM Tbl WHERE MyDate = #07/06/2014# Where is the problem then? 回答1: This is a common issue with Access date queries for people who use the dd/mm/yyyy format. The problem is that the Access Database Engine does not pay any attention to the

问题 I have a table like this: Artist Image Title Smith 2 Country Smith 5 Town Doyle 21 Cat Lawlor 24 Ball Jones 8 Cheese Jones 12 Bread Jones 15 Butter And I want to set up a DISTINCT Query to return the Artist once - doesn't matter which of the records are returned. This is what I'm looking for: Artist Image Title Smith 2 Country Doyle 21 Cat Lawlor 24 Ball Jones 8 Cheese I am using ASP on a MS Access database. Any help much appreciated. 回答1: Access has FIRST and LAST aggregates which return the

问题 I am having a VB.Net application. I connect it with a MS Access database. Now I have to execute a query. My query is : Update table1 set field1=replace(field1,'|','"') This query seems to work fine from the query analyzer of the Access database but when I do the same form the VB.Net code it throws me an error stating "Undefined function 'Replace' in expression" I am using OLEDB connection and command. I am using the "executenonquery" feature. Can any one help me? 回答1: Unfortunately when you

问题 How do i add a calculated column to an Access table in SQL? I know i can add a column with SQL like this: ALTER TABLE Clients ADD COLUMN AccountDate TEXT(60) Thanks, Vítor 回答1: You cannot add a calculated column with SQL because calculated field requires an expression and that cannot be supplied through SQL. Technically, a calculated field is a base type - int, double, text etc. Above the base type is an expression that helps Access do the math/logic. You could use VBA to create a calculated

问题 Is there any way how to create temporary table/view/stored procedure in MS Access database (2010) using Query Designer? Whenever i try to execute something like this: SELECT * INTO #temp_table FROM (SELECT column_1, column_2 FROM table) MS Access throws an error: Syntax error in CREATE TABLE statement. With no further information. 回答1: Access SQL does not support executing more than one SQL statement at a time, so the notion of a #temp table does not really apply. If you require a temporary