sql-update

问题 This answer has shown me how to get annual changes from data: UPDATE values_table as a join values_table as b ON b.date_sampled = DATE_SUB(a.date_sampled, INTERVAL 1 YEAR) set a.annual_change = a.sample_value - b.sample_value And this answer has shown me how to find the closest date to an INTERVAL (relative to NOW() with 3 results, in this question's case): SELECT event_id FROM Table ORDER BY ABS( DATEDIFF( EVENT_START_DATE, NOW() ) ) LIMIT 3 How can the two be combined to get annual rates of

问题 This answer has shown me how to get annual changes from data: UPDATE values_table as a join values_table as b ON b.date_sampled = DATE_SUB(a.date_sampled, INTERVAL 1 YEAR) set a.annual_change = a.sample_value - b.sample_value And this answer has shown me how to find the closest date to an INTERVAL (relative to NOW() with 3 results, in this question's case): SELECT event_id FROM Table ORDER BY ABS( DATEDIFF( EVENT_START_DATE, NOW() ) ) LIMIT 3 How can the two be combined to get annual rates of

问题 I have managed to update an SQL table and record by using this SQL string "UPDATE Breach_Test_Key SET [VAL_BREACH_REASON] = 'SOME BREACH REASON' WHERE [ID] = 1" Two things I am trying to achieve and that is: Update two specific columns in the SQL Table, how do I define two columns in the SET? I also need to update all records that are in a table in Excel back into an SQL table (which will all exist in the SQL table). The ID field will always match as the data is from this table. Please could

问题 I'm trying to close out a record, where I have a True/False column inside a table. Code below, I keep getting a compile error expected end of statement. What am I missing? It will only be one record that is True at any given time. If Me.butCompleteFlight.Value = True Then UPDATE tblFlightRecords SET strWorkingRecord = FALSE WHERE strWorkingRecord = TRUE 回答1: You can't mix SQL code and VBA code like that. You can execute the update statement with the method DoCmd.RunSQL: If Me

问题 I want to do exactly what it was described in this question: (Copy Column Value from One table into Another Matching IDs), but in SQLite instead of MySQL. The solution provided: update t1, t2 set t1.value = t2.p_value where t1.id=t2.parent_id returns an error near ","... If I say update t1 set t1.value = t2.p_value where t1.id=t2.parent_id returns an error near "." I was not expecting the syntax of MySQL being so different from SQLite. 回答1: You could try UPDATE t1 SET t1.value = ( SELECT t2.p

问题 The select statement executes with no errors or warning. The update statement throws an error: Incorrect syntax near the keyword 'group'. select [sSVsys].[textUniqueWordCount], count(*) as [actCount] from [docSVsys] as [sSVsys]with (nolock) join [FTSindexWordOnce] with (nolock) on [sSVsys].[sID] = [FTSindexWordOnce].[sID] where [sSVsys].[sID] < 500000 group by [sSVsys].[sID], [sSVsys].[textUniqueWordCount] having [sSVsys].[textUniqueWordCount] <> count(*) update [sSVsys] set [sSVsys].

问题 I have a procedure for insert in multiple dependent tables (update in case record exist). I have input parameters as comma separated string which I am reading in table. After 1st insertion I am getting InsertedIds in another table variable. I am struggling over how to do insert in 2nd table. I have following input parameters for 2nd table: Declare @IdsToBeUpdated table (primary key identity pkey, id int) -- values are 1,-1,3,-1 Declare @CommentsTobeInserted table( primary key identity pkey,

问题 My application in Django can create some very big SQL queries. I currently use a HttpRequest object, for the data I need, then a HttpResponse , to return what I want to show the User. Obviously, I can let the User wait for a minute whilst these many sets of queries are being executed and extracted from the database, then return this monolothic HTML page. Ideally, I'd like to update the page when I want, something like: For i,e in enumerate(example): Table.objects.filter(someObjectForFilter[i]

问题 I am using SQL Server 2008 I have a table named MYTABLE with two columns: ID , STATUS I want to write a stored procedure that returns the records whose STATUS is 0. But this stored proc must update the STATUS of returned rows to 1. How can I do this selecting and updating operation in a single query? 回答1: update MyTable set Status = 1 output inserted.* where Status = 0 If you want to return what the table looked like before the update you should use deleted.* instead. update MyTable set

问题 I am using SQL Server 2008 I have a table named MYTABLE with two columns: ID , STATUS I want to write a stored procedure that returns the records whose STATUS is 0. But this stored proc must update the STATUS of returned rows to 1. How can I do this selecting and updating operation in a single query? 回答1: update MyTable set Status = 1 output inserted.* where Status = 0 If you want to return what the table looked like before the update you should use deleted.* instead. update MyTable set