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POhow to omit first and last comma when using sys_connect_by_path function in oracle?
 

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  1. POhow to omit first and last comma when using sys_connect_by_path function in oracle?
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    <p>so this is my table--</p> <pre><code>create table student ( stu_id int, s_name nvarchar(max), s_subject nvarchar(max), marks varchar(20) ) </code></pre> <p>and the values are</p> <pre><code>insert into student values(123,'pammy','English','88'); insert into student values(123,'pammy','Maths','56'); insert into student values(124,'watts','Biology','98'); insert into student values(125,'Tom','Physics','90'); insert into student values(125,'Tom','Computer','95'); insert into student values(125,'Tom','ED','75'); </code></pre> <p>so what i have done is extracted data which occurred thrice. and then concatenated the string values using sys_connect_by_path. My code is--</p> <pre><code> select stu_id,s_name, max(sys_connect_by_path(s_subject, ', ' )) s_subject, max(sys_connect_by_path(marks, ', ' )) marks from (select stu_id,s_name,s_subject,marks, row_number() over (partition by stu_id order by s_subject) rn from student ) start with rn = 1 connect by prior rn = rn-1 and prior stu_id = stu_id group by stu_id,s_name having stu_id in ( select stu_id from student group by stu_id having count(stu_id) &gt;3 ) order by stu_id,s_name </code></pre> <p>output of my code is --</p> <pre><code>stu_id s_name s_subject marks 125 Tom ,Physics,Computer,ED, ,90,95,75, </code></pre> <p>the code is working perfectly, but I am using comma as seprator, and i just want to get rid of comma at the start and at the end. in s_subject column.</p> <p>what I wants is </p> <p>stu_id s_name s_subject marks 125 Tom Physics,Computer,ED 90,95,75</p> <p>I tried trim function, but i could not get success. I can substr the sys connect by path if my data is fixed, but here data is not fixed. So pls help..</p>
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    1. USAshish dmc4
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      1. POhow to omit first and last comma when using sys_connect_by_path function in oracle?
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      1. POhow to omit first and last comma when using sys_connect_by_path function in oracle?
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    1. This table or related slice is empty.
 

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