ms-access

问题 I have this query: UPDATE client SET client.[client_history] = 10 FROM [T_CLIENT] AS client INNER JOIN (SELECT [client_id], SUM([final_price]) FROM [T_PURCHASE] GROUP BY [client_id]) AS p ON client.[client_id] = p.[client_id] When i execute this query on access, i get "Syntax Error". Did you see something wrong? Thank you 回答1: You can use a DSUM to sum from a different table in an update query. Subqueries with aggregates won't work, because they're not updateable. UPDATE t_client SET [client

问题 So I'm converting an access back-end to SQL. I've tried a few different tools (SSMA, Upsizing Wizard, and a simple import). I've found so far that the SSMA tool and importing seem to work the best, eliminating most of the work necessary for me. However, I'm running into one issue I can't figure out how to overcome. Two fields allow multiple values (dropdown with check boxes). In converting these, it errors in a way that it not only doesn't carry all of the information over, but also grabs

问题 So I'm converting an access back-end to SQL. I've tried a few different tools (SSMA, Upsizing Wizard, and a simple import). I've found so far that the SSMA tool and importing seem to work the best, eliminating most of the work necessary for me. However, I'm running into one issue I can't figure out how to overcome. Two fields allow multiple values (dropdown with check boxes). In converting these, it errors in a way that it not only doesn't carry all of the information over, but also grabs

问题 I have searched, but all results didn't help me to understand. I need to select names of people who are 18-23 years old. So my try was: WHERE ((People.Birth) Between (Now()-Year(18)) And (Now()-Year(23))) What I'm doing wrong? Solution as #some_date# is a bad idea! 回答1: For a true solution, you need to use DateAdd and a function like this: Public Function AgeSimple( _ ByVal datDateOfBirth As Date) _ As Integer ' Returns the difference in full years from datDateOfBirth to current date. ' '

问题 I have searched, but all results didn't help me to understand. I need to select names of people who are 18-23 years old. So my try was: WHERE ((People.Birth) Between (Now()-Year(18)) And (Now()-Year(23))) What I'm doing wrong? Solution as #some_date# is a bad idea! 回答1: For a true solution, you need to use DateAdd and a function like this: Public Function AgeSimple( _ ByVal datDateOfBirth As Date) _ As Integer ' Returns the difference in full years from datDateOfBirth to current date. ' '

问题 I have searched, but all results didn't help me to understand. I need to select names of people who are 18-23 years old. So my try was: WHERE ((People.Birth) Between (Now()-Year(18)) And (Now()-Year(23))) What I'm doing wrong? Solution as #some_date# is a bad idea! 回答1: For a true solution, you need to use DateAdd and a function like this: Public Function AgeSimple( _ ByVal datDateOfBirth As Date) _ As Integer ' Returns the difference in full years from datDateOfBirth to current date. ' '

问题 I currently have two tables. One has Employee Names and a number associated to that name. The other date has time sheet date with columns for the employee number, the date and the number of hours worked on that date. I want to create a cross tab query that shows the employee names in one column with the date for the end of the week in each column, then show to sum of hours for that week for a particular employee. My current query works but only groups by month. I am struggle to work out how

问题 I currently have two tables. One has Employee Names and a number associated to that name. The other date has time sheet date with columns for the employee number, the date and the number of hours worked on that date. I want to create a cross tab query that shows the employee names in one column with the date for the end of the week in each column, then show to sum of hours for that week for a particular employee. My current query works but only groups by month. I am struggle to work out how

问题 I have Two tables in my access database table1(Employee Name,Emp Number,Emp Salary) table2(Employee Name,Emp Number,Total Salary) these tables are related together using "Employee Name" and "Emp Number",How can I update "Total Salary" from table2 with the value Sum(Emp Salary) from first table" 回答1: Query, which contains aggregated functions or uses queries with aggregated functions is not updateable. So, you can update the data in existing table using: Temporary table. Save aggregated

问题 I have a table named tblFriends : tblFriends is generated from query qryFriends . The data and number of records within tblFriends changes everyday but is never more than 30. I would like to generate sequential numbers next to each of the Names, but this seems to be extremely difficult. I have tried looping insert queries as shown below: strSQLaddSEQ = "ALTER TABLE tblFriends ADD SEQ Number;" DoCmd.RunSQL strSQLaddSEQ For SEQNum = 1 To 30 strSqlSEQNum = "INSERT INTO Friends (SEQ) Values(" &