Alternatively, we can use the GROUP_CONCAT() function in combination with the JSON_OBJECT() and JSON_MERGE_PRESERVE() functions to create the same format: SELECT JSON_MERGE_PRESERVE( GROUP_CONCAT(JSON_OBJECT("1","one")), GROUP_CONCAT(JSON_OBJECT("2","two")) ) AS result; +---+ |...
When you ask a question and present some info then please focus on the issue. It seems like in your case you want to useSTRING_AGGfunction instead of using usingFOR AML(by the way,stuffis not what aggregate the data but the FOR XML part). The idea is to simplifies the scenario ...
Help me, how to concatenate int column values to string column, See my sample temp. table CREATE TABLE [dbo].[#Stud_TBL]( [STUD_ID] INT not NULL, [STUD_NAME] [varchar](150) NOT NULL, [STUD_Dept] [varchar](5) NOT NULL, ) ON [PRIMARY] GO SET ANSI_PADDING OFF GO INSERT ...
Even if there does no built-in function in HANA exists, there are workarounds how to do this in SQL. For the pivot-function it is possible to create new columns with CASE/WHEN and filter for particular values. Pivot First of all, we will create a test table with three columns. Let’...
IF EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[People]') AND type in (N'U')) DROP TABLE [People] GO SET ANSI_NULLS ON GO SET...
How to create_engine sqlalchemy? We can create the engine is not just a matter for to perform the user operations like issuing the datas as the single call with create_engine() method. In code, we can first import the sqlalchemy with create_engine and create the database engine reference...
Enhance your SQL skills with the SQL PIVOT operator. Learn to convert rows into columns to create pivot tables in SQL Server and Oracle.
Creating box plots using SQL Because box plots are based on medians and percentiles (functions that require data to be sorted in a particular order), most databases can't directly calculate the values needed to create a box plot. The steps below show how to find these values usingwindow fun...
voidinsertResultInto(AggregateDataPtrplace,IColumn&to,Arena*arena)constoverride; 通过该方法获取最终的聚合结果。 除了IAggregateFunction接口之外,还有IAggregateFunctionHelper辅助接口,其通过模板的类型派生,将虚函数的调用转换为函数指针的调用,从而提高聚合函数的计算效率。
JavaScript Object Notation (JSON) is a lightweight data transfer format. It's the de facto standard for document exchange. So it's likely you'll want to send and receive JSON documents from and to your database. And store them in your tables. Oracle Dat