27 Tuple<StringBuilder, DynamicParameters> resultsqlparams = query.RawSqlParams(); 28 WriteSqlParams(resultsqlparams); // 打印sql和参数 29 30 int page = 2, rows = 3, records; 31 var result2 = query.LoadPagelt(page, rows, out records); 32 WriteJson(result2); // 查询结果 33 } 生成...
These columns correspond to the pivot_column and value_column, respectively, in the Transact-SQL definition. Here's the query. SQL Copy -- Create the table and insert values as portrayed in the previous example. CREATE TABLE pvt ( VendorID INT, Emp1 INT, Emp2 INT, Emp3 INT, Emp4 ...
SQL 複製 SELECT TerritoryID, Name FROM Sales.SalesTerritory ORDER BY TerritoryID; 結果集如下所示。 輸出 複製 TerritoryID Name --- --- 1 Northwest 2 Northeast 3 Central 4 Southwest 5 Southeast 6 Canada 7 France 8 Germany 9 Australia 10 United Kingdom (10 row(s) affected) B. 使用...
AI代码解释 --unpivot 语法SELECT[columns not unpivoted],[unpivot_column],[value_column],FROM()AS<aliasforthe source data>UNPIVOT([value_column]FOR[unpivot_column]IN(<column_list>))AS<aliasforunpivot>Where:--[columns not unpivoted]:没有被转换的列名。--[unpivot_column]:转换的各列所汇总到的单...
syntaxsql 复制 SELECT [ <non-pivoted column> [ AS <column name> ] , ] ... [ [ AS <column name> ] , ] [ <new output column created for values in result of the source query> [ AS <column name> ] ] FROM ( <SELECT query that produces the data> ) AS <alias for the sourc...
syntaxsql SELECT[<non-pivoted column>[AS<column name>] , ] ... [[AS<column name>] , ] [<new output column created for values in result of the source query>[AS<column name>] ]FROM(<SELECT query that produces the data>)AS<alias for the source query>UNPIVOT(<new output column creat...
示例1:Using UNPIVOT to Revert Column Headers into Row Data View Code 从SQL中可以看出,UNPIVOT同样有两个步骤,这里就不详说了,可以查看MSND了解更多。 PS:我们必须指定列转行里面的字段,如果数据库增加了一个color,那我们必须要更改这段SQL,除非我们用动态SQL来实现。
create a matrix table using sql query Create a matrix table using t-sql Create a new database from existing mdf file. Create a percentage from two SUM values Create a query to remove last two characters of a string Create a view and change the data types of some variables Create a writa...
syntaxsql SELECT[<non-pivoted column>[AS<column name>] , ] ... [[AS<column name>] , ] [<new output column created for values in result of the source query>[AS<column name>] ]FROM(<SELECT query that produces the data>)AS<alias for the source query>UNPIVOT(<new output column creat...
syntaxsql SELECT[<non-pivoted column>[AS<column name>] , ] ... [[AS<column name>] , ] [<new output column created for values in result of the source query>[AS<column name>] ]FROM(<SELECT query that produces the data>)AS<alias for the source query>UNPIVOT(<new output column creat...