以下是SQLROLLUP的基本语法: snippet.sql SELECTc1,c2,aggregate_function(c3)FROMTABLEGROUPBYROLLUP(c1,c2); ROLLUP假定输入列之间存在层次结构。 例如,如果输入列是(c1,c2),则层次结构c1 > c2。ROLLUP生成考虑此层次结构有意义的所有分组集。 这就是为什么我们经常使用ROLLUP来生成小计和总计以用于报告目的。
Use theTSRollupfunction to run one or more aggregate operators on multiple rows of time series data in a table. You can specify a time range on which to run the aggregate expression by including thestartandendarguments in the aggregate expression. Specifying the time range in theTSRollupfunctio...
We are executing the below SQL Query to fetch the total salary by Customer name using GROUP BY Clause and the SQL SUM () aggregate function in MySQL. SELECTName,SUM(Salary)FROM`customer_data`GROUPBYName; Output: Now, let us query the following statement to retrieve the total amount in all...
subjects);等同于以下标准SQLSELECTNULL,subjects,SUM(score)FROMstudentscoreGROUPBYsubjectsUNIONSELECTstudent_name,NULL,SUM(score)FROMstudentscoreGROUPBYstudent_nameUNIONSELECTNULL,NULL,SUM(score)FROMstudentscoreUNIONSELECTstudent_name,subjects,SUM(score)FROMstudentscoreGROUPBYstudent_name,subjectsSELECTstudent_name,subj...
以往的查询SQL: Select area,month,sum(money) from SaleOrder group by area,month 然后广州,深圳的合计和所有地区合计都需要在程序里自行累计 1.其实可以使用如下SQL: Select area,month,sum(total_sale) from SaleOrder group by rollup(area,month) ...
find_all elements in an array that match a condition? I've an array of hash entries, and want to filter based on a paramater passed into the function. If there are three values in the hash, A, B, and C, I want to do something similar to: find all where A... ...
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TheGROUP BYclause in SQL Server allows grouping of rows of a query. Generally, GROUP BY is used with an aggregate SQL Server function, such as SUM, AVG, etc. In addition, the GROUP BY can also be used with optional components such as Cube, Rollup and Grouping Sets. In this ...
operators to rollup up children of the Net Profit hierarchy in the Account dimension in an alternate manner. This member property does not exist in the Adventure Works cube, but could be created. This use of theRollupChildrenfunction could be used in a budgeting application for what-if ...
-- 1 6250.09 1 2 4702.23 1 3 5063.46 1 4 5139.23 1 5 5706.92 1 6 5282.75 1 7 4048.04 1 8 5311.59 1 9 4662.86 1 10 4361.22 1 1 4718.55 2 2 5439.1 2 3 4643.4 2 4 4515.3 2 5 5110.27 2 6 5910.78 2 7 4987.22 2 8 4846.25 2 9 5458.82 2 10 4898.7 2 20 rows selected. SQL>...