sql-server-2012

问题 we currently have a base installation of our CMS, in this CMS it contains a complete working dataset for users, products, content etc. We are looking to increase our installation time because right now we currently have to go into SQL Server 2012, create a new DB and then restore the DB from an existing base installation db. This can take up to 10 - 15 minutes each installation we do. We also make sure our base database has all the requirements for sites we build. Our issue is, we would like

问题 I was using UniDac for a long time now and decided to move on to FireDac as it has good Asynch methods after moving on i saw that none of my data editing works anymore it gives me an error: [FireDAC][Phys]-330. Cannot generate update query. Update table undefined. What I am trying to do here is i have a TFDStoredProc component who gets all the data from the database and lets me edit it, with unidac I could easily edit the data without any problem like this: StoredProc.Edit;

问题 I was working on a bit of SQL for a project, and I noticed some seemingly strange behavior in SQL Server, with regard to what the answer looks like when dividing with decimals. Here are some examples which illustrate the behavior I'm seeing: DECLARE @Ratio Decimal(38,16) SET @Ratio = CAST(210 as Decimal(38,16))/CAST(222 as Decimal(38,16)); select @Ratio -- Results in 0.9459450000000000 DECLARE @Ratio Decimal(38,16) SET @Ratio = CAST(210 as Decimal)/CAST(222 as Decimal); select @Ratio --

问题 basically I want to be able to select monday and friday for every week in the year. So for example this week coming i want 9/29/2014 and 10/3/2014, but i want this for every week in the year. 回答1: Here's one way (you might need to check which day of the week is setup to be the first, here I have Sunday as the first day of the week) You can use a table with many rows (more than 365) to CROSS JOIN to in order to get a run of dates (a tally table). My sys columns has over 800 rows in, you could

问题 Can you please explain why select * from sys.dm_exec_sql_text (sql_handle) throws an error (Invalid column name 'sql_handle'), but select * from sys.sysprocesses cross apply sys.dm_exec_sql_text (sql_handle) is a valid query? Thank you. 回答1: You need to join it to another table to get the sql_handle (or plan_handle). For example: select a.session_id, a.start_time, status, a.command, text from sys.dm_exec_requests a cross apply sys.dm_exec_sql_text(sql_handle). sys.dm_exec_sql_text is a table

问题 I have a table in SQL Server 2012 with data like this: Request_Type Total_Count --------------------------- General 25 Inquiry 15 I want to return the percentage of counts in the last column like this: Request_Type Total_Count Total_Percentage -------------------------------------------------- General 25 62.5 Inquiry 15 37.5 I tried the following query, select Request_Type, Total_Count, (Total_Count* 100) / isnull(sum(Total_Count),0) as Total_Percentage from tbl_Request but it returns 100 in

问题 I read that DTS packages aren't supported in SQL Server 2012. I know there's a Backward Compatibility package/option out there that we used for SQL Server 2008R2 to run DTS packages. Will that Backwards compatibility package not work for SQL Server 2012? For 2008 R2 http://msdn.microsoft.com/en-us/library/bb500440(v=sql.105).aspx 回答1: As the documentation says, support for "migrating or running" DTS packages was completely discontinued in SQL Server 2012. Even if you convince your customers

问题 I have a table with a primary key, now without any reason I don't know when I am inserting data it is being loaded like this Pk_Col Some_Other_Col 1 A 2 B 3 C 1002 D 1003 E 1901 F Is there any way I can reset my table like below, without deleting/ truncating the table? Pk_Col Some_Other_Col 1 A 2 B 3 C 4 D 5 E 6 F 回答1: You can't update the IDENTITY column so DELETE/INSERT is the only way. You can reseed the IDENTITY column and recreate the data, like this: DBCC CHECKIDENT ('dbo.tbl',RESEED,0)

问题 Is it possible to use the result of a select as a string to concatenate with another string in column name in other select? Example: SELECT brand FROM articles a WHERE a.id='12345678' Result: BRAND_A I now want to concatenate _PRICE to BRAND_A ... SELECT ( SELECT brand FROM articles a WHERE a.id = '12345678' ) + "_PRICE" FROM prices p WHERE p.id = '12345678' ...to actually retrieve: SELECT BRAND_A_PRICE FROM prices p WHERE p.id = '12345678' 回答1: You don't need dynamic SQL to do this (and

问题 How do I select an order with two products in the OrderDetails ? For example, if I have 4 orders: order id: 11000 contains: p1, p3, p5, p9 order id: 12000 contains: p1, p4, p5, p8 order id: 13000 contains: p2, p3, p5, p7 order id: 14000 contains: p1, p3, p5, p8 order id: 15000 contains: p2, p3, p6, p9 I want to select order ids where they contain p1 and p9 The expected result: 11000, 12000, 14000 How do I do this in SQL Server? 回答1: You can use something like: SELECT id FROM OrderDetails