pivot table sql server

My Russian name is "do not toss uncomfortable", so, do not put the partition table A good toss, I am not comfortable.In the previous section, we discussed how to create a partitioned table directly and how to convert a normal table into a partitioned table. So what's the difference between these two ways of creating a

programmers. To add records as an example, the above 5 tables are separate 5 tables, when adding records at different times, the programmer to use different SQL statements, such as when adding records in 2011, the programmer to add records to the 2011 table, in 2012 to add records, The programmer wants to add the record to the 2012 table. In this way, the progra

Tags: is sele into font an int BSP inline insertPivot data is actually a row state to an example stateAdd a test sheet firstIF object_id('dbo. Orders','U') is not NULL DROP TABLEdbo. Orders;GOCREATE TABLEdbo. Orders (OrderIDINT not NULL, OrderDate DATE not NULL, EmpidINT not NULL, CustIDVARCHAR(5) not NULL, QtyINT not NULL, CONSTRAINTPk_ordersPRIMARY KEY(OrderID));INSERT intodbo. Orders (OrderID, OrderDate, Empid, CustID, qty)VALUES (30001,'20070802',3,'A',Ten), (100

tables, when adding records at different times, the programmer to use different SQL statements, such as when adding records in 2011, the programmer to add records to the 2011 table, in 2012 to add records, The programmer wants to add the record to the 2012 table. In this way, the programmer's workload increases and the likelihood of errors increases.The use of p

://121.43.155.144:3306/finance_uat?useunicode=trueamp;characterencoding=utf-8 amp;zerodatetimebehavior=converttonull ";Public List query (String table,string type,string fieldname,string prefs) throws SQLException {Connection Connection = null;PreparedStatement preparestatement =null;ResultSet rs = null;Map m = new HashMap ();Map map = new HashMap ();string[] Fieldsplit = Fieldname.split (",");List resultlist = new ArrayList ();string[] types = Type.s

aggregate function sum indicates how you want to handle the value of the converted column, whether it is the sum (sum), average (avg), Min,max, and so on. For example, if the Week_income table has two data and its week is "Monday", one of the income is 1000 and the other income is 500, then the sum is used here, and the value of the column "Monday" After row to column is of course 1500. After for [week] in ([Monday],[Tuesday] ...) In for [week] means

Tags: style blog http color ar using SP for strongOriginal: SQL row to Column PIVOT column career UNPIVOTOne:Existing table one (T_TABLE1), want to convert to table two (t_table2) format.Table I: year company revenue 2013 Company 1

I. What is covered in this article (Contents) What is covered in this article (Contents) Background (contexts) Implementation code (SQL Codes) Method One: Use splicing SQL, static column field; Method two: Using splicing sql, dynamic column field; Method Three: Use pivot relation

partition table in SQL Server 2005 (iii): Converting a normal table to a component area tableCategory: SQL Server2009-12-03 17:01 9709 People read Comments (6) favorite reports SQL Serverinserttablenullsql DatabaseIn the desig

clustered index. As mentioned earlier, a partitioned table is a partition condition for a field, so you cannot create a clustered index other than this field. Therefore, to convert a normal table to a constituent table, you must first delete the clustered index and then create a new clustered index that uses the partitioning scheme in the clustered index.Unfortu

temporary table is created by a stored procedure or an application executed by multiple users at the same time, SQL Server must be able to differentiate the tables created by different users. Therefore, SQL Server adds a digital suffix to the

SQL Server vertical table and horizontal table conversion method, SQL mutual conversion 1. convert a vertical table to a horizontal table Table_A: Converted structure:

the row data SET @sql_str = N ' SELECT @sql_col_out = ISNULL (@sql_col_out + "," "," ") + QUOTENAME ([' [email protected]+ ']) from [' [E-mail protected]+ '] ' [email protected]_where+ ' GROUP by [' [email protected]+ '] ' --print @sql_str EXEC sp_executesql @sql_str, N ' @sql_col_out NVARCHAR (MAX) output ', @[email protected]_col output --print @sql_col SET @sql_str = N ' SELECT * FROM ( SELECT [' [Email protected]+ '],[' [email protected]

I. What is covered in this article (Contents) What is covered in this article (Contents) Background (contexts) Implementation code (SQL Codes) Method One: Use splicing SQL, static column field; Method two: Using splicing sql, dynamic column field; Method Three: Use pivot relation

SQL Server recovery table-level data details, SQL Server details In recent days, the company's technical maintenance staff frequently asked me to restore the database, because they always have fewer where conditions, resulting in unrecoverable consequences for the update and

above code, we can see that this table has the characteristics of the general table--there is a primary key, and the primary key is also a clustered index. As mentioned earlier, a partitioned table is a partition condition for a field, so you cannot create a clustered index other than this field. Therefore, to convert a normal

When it comes to statistics, it is often a problem to change rows and columns. Case when mode is too cumbersome, and scalability is not strong, you can use Pivot,unpivot to quickly achieve row to column, column change, and Scalability strongFirst, row to column1. Test data PreparationCREATE TABLE [Studentscores]( [UserName] NVARCHAR( -),--Student Name [Subject] NVARCHAR( -),--Subjects

Detailed description of SQL Server table and index storage structure, SQL Server This article analyzes in detail the principles of table and index structure storage in SQL

Analyze SQL server temporary table and SQL server Create a temporary table. # indicates a local temporary table. # indicates a global temporary tab