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    <p>SQL is definitely not the right language to do string processing like that :-)</p> <p>I used existing code to split/create comma-delimited strings, but in TD14 it would be much easier (there's strtok_split_to_table and udfConcat).</p> <pre><code>CREATE VOLATILE TABLE vt (id INT, attrib VARCHAR(100)) ON COMMIT PRESERVE ROWS; INSERT INTO vt(1 ,'123(red), 139(red), 123(white), 123(black), 139(white),'); INSERT INTO vt(2 ,'123(black), 139(white), 123(green),'); INSERT INTO vt(32 ,'223(blue), 223(red), 553(white), 123(black),'); INSERT INTO vt(4 ,'323(white), 139(red), '); INSERT INTO vt(23 ,'523(red),'); WITH RECURSIVE cte (id, len, remaining, word, pos ) AS ( SELECT id, POSITION(',' IN attrib || ',') - 1 AS len, SUBSTRING(attrib || ',' FROM len + 2) AS remaining, TRIM(SUBSTRING(attrib FROM 1 FOR len)) AS word, 1 FROM vt UNION ALL SELECT id, POSITION(',' IN remaining)- 1 AS len_new, SUBSTRING(remaining FROM len_new + 2), TRIM(SUBSTRING(remaining FROM 1 FOR len_new)), pos + 1 FROM cte WHERE remaining &lt;&gt; '' ) SELECT id, MAX(CASE WHEN newpos = 1 THEN newgrp ELSE '' END) || MAX(CASE WHEN newpos = 2 THEN newgrp ELSE '' END) || MAX(CASE WHEN newpos = 3 THEN newgrp ELSE '' END) || MAX(CASE WHEN newpos = 4 THEN newgrp ELSE '' END) || MAX(CASE WHEN newpos = 5 THEN newgrp ELSE '' END) || MAX(CASE WHEN newpos = 6 THEN newgrp ELSE '' END) -- add as many CASEs as needed FROM ( SELECT id, ROW_NUMBER() OVER (PARTITION BY id ORDER BY newgrp) AS newpos, a || MAX(CASE WHEN pos = 1 THEN '(' || b ELSE '' END) || MAX(CASE WHEN pos = 2 THEN ', ' || b ELSE '' END) || MAX(CASE WHEN pos = 3 THEN ', ' || b ELSE '' END) || MAX(CASE WHEN pos = 4 THEN ', ' || b ELSE '' END) || MAX(CASE WHEN pos = 5 THEN ', ' || b ELSE '' END) || MAX(CASE WHEN pos = 6 THEN ', ' || b ELSE '' END) -- add as many CASEs as needed || '); ' AS newgrp FROM ( SELECT id, ROW_NUMBER() OVER (PARTITION BY id, a ORDER BY pos) AS pos, SUBSTRING(word FROM 1 FOR POSITION('(' IN word) - 1) AS a, TRIM(TRAILING ')' FROM SUBSTRING(word FROM POSITION('(' IN word) + 1)) AS b FROM cte WHERE word &lt;&gt; '' ) AS dt GROUP BY id, a ) AS dt GROUP BY id; </code></pre>
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    1. POIs it possible to group string within a string in Teradata?
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    1. USdnoeth
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    1. COYou are awesome. thanks
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      1. USAleksei Nikolaevich
 

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