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How to Sort Version numbers in Oracle SQL

Sreevani Maddela

Summary

How to Sort Version numbers in Oracle SQL

Content

I have a requirement to sort the version number

Result Data :

1

1.1

1.1.1

10.1

10.1.1

10.11

17.1

17.1.1

17.1.1.1

2.1

2.1.1

2.2

..

but i need results in the following order

1

1.1

2.1

2.1.1

2.2

10.1

10.1.1

10.11

17.1

....

17.1.1.1

Tried by converting varchar to number but does not provide appropriate results

Kindly help me on this

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Carlos Carvalho

Hello,

Not sure if this is the correct forum for this post (should´t be or , rigth?).

Supposing the column is vachar2 try:

<span class="kwd" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #101094;">select</span><span class="pln" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #303336;"> </span><span class="kwd" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #101094;">column</span><span class="pln" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #303336;"> <br/></span><span class="kwd" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #101094;">from</span><span class="pln" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #303336;"> </span><span class="kwd" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #101094;">table</span><span class="pln" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #303336;"><br/></span><span class="kwd" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #101094;">order</span><span class="pln" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #303336;"> </span><span class="kwd" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #101094;">by</span><span class="pln" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #303336;"> <br/> regexp_substr</span><span class="pun" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #303336;">(</span><span class="kwd" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #101094;">column</span><span class="pun" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #303336;">,</span><span class="pln" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #303336;"> </span><span class="str" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #7d2727;">'^\D*'</span><span class="pun" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #303336;">)</span><span class="pln" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #303336;"> </span><span class="pun" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #303336;">,</span><span class="pln" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #303336;"><br/> to_number</span><span class="pun" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #303336;">(</span><span class="pln" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #303336;">regexp_substr</span><span class="pun" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #303336;">(</span><span class="kwd" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #101094;">column</span><span class="pun" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #303336;">,</span><span class="pln" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #303336;"> </span><span class="str" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #7d2727;">'\d+'</span><span class="pun" style="font-style: inherit; font-weight: inherit; font-size: inherit; font-family: inherit; color: #303336;">))</span>

Regards,

Carlos

Venkat Thota - BIP

Try to find the length of each row using length(version field name )

select * from (select version_column, length(version_column) Lnth_column from table ) order by Lnth_column