calculated-field

问题 Invalid column name ItemA , ItemB , ItemC , ItemD , and ItemE I am migrating this from Progress to SQL and can't reference the calculated fields within the query. After researching the error it appears the only solution is to replace each item with the full expression or create a nested select statement. Neither seem to work in this case. SELECT OrderQty - (ItemE + ShippedQty) AS ItemA, ((CASE WHEN (ItemA > ItemB AND ItemA > 0) THEN (ItemA - ItemB) ELSE 0 END)) AS ItemC, UnitPrice * ItemC AS

问题 Invalid column name ItemA , ItemB , ItemC , ItemD , and ItemE I am migrating this from Progress to SQL and can't reference the calculated fields within the query. After researching the error it appears the only solution is to replace each item with the full expression or create a nested select statement. Neither seem to work in this case. SELECT OrderQty - (ItemE + ShippedQty) AS ItemA, ((CASE WHEN (ItemA > ItemB AND ItemA > 0) THEN (ItemA - ItemB) ELSE 0 END)) AS ItemC, UnitPrice * ItemC AS

问题 I have a field such that Color Pink Blue Pink Blue Pink Pink Pink Pink Pink Blue Blue Pink Pink Pink Blue Pink Blue Pink Blue How to create calculated field to count number of times Pink appears? Total numbers of Blue? 回答1: If you're grouping by Color and only Color in the view, then you can simply use SUM(Number of Records) . For example, put Color in the Rows shelf and SUM(Number of Records) into Text, and you'll get a table with the counts for each Color. If you need to specify the level

问题 Im trying to create a calculation in Access through the use of queries. At the moment one query calculates the value of 'MPP Oil' (max production potential) and another query needs to use this value to calculate 'Unallocated losses'. These calculations use company/asset/year data from a base query 'PEBaseQuery'. Other input values to calculate Unallocated losses are referenced using IDs... There seems to be something off with my code though, please help! SELECT qb1.CompanyName, qb1.AssetName,

问题 I am facing a problem in contact form 7, and I would like to have some help. The problem that I am having is that I have a set of Check boxes that I would like to have a total show when a client clicks on it. MY Check box: (multiple select ) can pick more then one [checkbox GRCGA class:multipal use_label_element "$10.00" "$20.00" "$25.00" "$50.00" "$75.00" "$100.00" "$200.00" "$400.00" "$500.00"] Total Amount: <span id="total">$00</span>.00 Jvascript: $("input[type=checkbox]").change(function

问题 Let's say there are documents in MongoDB, that look something like this: { "lastDate" : ISODate("2013-14-01T16:38:16.163Z"), "items":[ {"date":ISODate("2013-10-01T16:38:16.163Z")}, {"date":ISODate("2013-11-01T16:38:16.163Z")}, {"date":ISODate("2013-12-01T16:38:16.163Z")}, {"date":ISODate("2013-13-01T16:38:16.163Z")}, {"date":ISODate("2013-14-01T16:38:16.163Z")} ] } Or even like this: { "allAre" : false, "items":[ {"is":true}, {"is":true}, {"is":true}, {"is":false}, {"is":true} ] } The top

问题 I have a table with several account fields like this: MAIN_ACCT GROUP_ACCT SUB_ACCT I often need to combine them like this: SELECT MAIN_ACCT+'-'+GROUP_ACCT+'-'+SUB_ACCT FROM ACCOUNT_TABLE I'd like a calculated field that automatically does this, so I can just say: SELECT ACCT_NUMBER FROM ACCOUNT_TABLE What is the best way to do this? I'm using SQL Server 2005. 回答1: ALTER TABLE ACCOUNT_TABLE ADD ACCT_NUMBER AS MAIN_ACCT+'-'+GROUP_ACCT+'-'+SUB_ACCT PERSISTED This will persist a calculated

问题 I need to perform a calculation in SSAS which only applies to the current and future months (it can't be applied retrospectively using the available data). I can do this by using the calendar hierarchy and hard coding today's month as follows... SCOPE([Measures].[RollingStock]); ([Dim Date].[Calendar].[Month].&[201008]:NULL) = ([Measures].[Quantity On Hand] - [Measures].[SO Open Quantity] + [Measures].[PO Open Quantity] - [Measures].[Forecasts Quantity]); END SCOPE; I want to replace 201008

问题 I need to perform a calculation in SSAS which only applies to the current and future months (it can't be applied retrospectively using the available data). I can do this by using the calendar hierarchy and hard coding today's month as follows... SCOPE([Measures].[RollingStock]); ([Dim Date].[Calendar].[Month].&[201008]:NULL) = ([Measures].[Quantity On Hand] - [Measures].[SO Open Quantity] + [Measures].[PO Open Quantity] - [Measures].[Forecasts Quantity]); END SCOPE; I want to replace 201008

问题 I'm getting data using a query in Delphi, and would like to add a calculated field to the query before it runs. The calculated field is using values in code as well as the query so I can't just calculate it in SQL. I know I can attach an OnCalcFields Event to actually make the calculation, but the problem is after adding the calculated field there are no other fields in the query... I did some digging and found that all of the field defs are created but the actual fields are only created if