Knowledge Log 2

Source: Internet
Author: User

Knowledge Outline:

Oracle Merge Column Syntax

Use of Wmsys.wm_concat (EmployeeName)--->wmsys.wm_concat () (Oracle syntax)

Select Password,to_char (Wmsys.wm_concat (EmployeeName)) as AAA
From "the". Tbemployee where Employeecode in (' 0000 ', ' 0053482 ') group by PASSWORD;

Initial data:

Password EmployeeName

123 Chen Wei 1

123 Chen Wei 2

Execute the above sql:

Password AAA

123 Chen Wei 1, Chen Wei 2

The corresponding function in SQL syntax is: Stuff

Value = Stuff
(SELECT ', ' + value
From TB as T
WHERE T. id = FOR XML Path (")), 1, 1, ')
From TB

Knowledge Log 2

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