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copied!<p>Here's an alternative</p> <p>Sample table for discussion, don't worry about the nonsensical data, they just need to be null or not</p> <pre><code>create table taddress (id int,a varchar(10),b varchar(10),c varchar(10)); insert taddress select 1,1,2,3 union all select 2,1, null, 3 union all select 3,null, 1, 2 union all select 4,null,null,2 union all select 5,1, null, null union all select 6,null, 4, null </code></pre> <p>The query, which really just normalizes the data</p> <pre><code>;with tmp as ( select *, rn=ROW_NUMBER() over (partition by t.id order by sort) from taddress t outer apply ( select 1, t.a where t.a is not null union all select 2, t.b where t.b is not null union all select 3, t.c where t.c is not null --- EXPAND HERE ) u(sort, line) ) select t0.id, t1.line, t2.line, t3.line from taddress t0 left join tmp t1 on t1.id = t0.id and t1.rn=1 left join tmp t2 on t2.id = t0.id and t2.rn=2 left join tmp t3 on t3.id = t0.id and t3.rn=3 --- AND HERE order by t0.id </code></pre> <h3>EDIT - for the update back into table</h3> <pre><code>;with tmp as ( select *, rn=ROW_NUMBER() over (partition by t.id order by sort) from taddress t outer apply ( select 1, t.a where t.a is not null union all select 2, t.b where t.b is not null union all select 3, t.c where t.c is not null --- EXPAND HERE ) u(sort, line) ) UPDATE taddress set a = t1.line, b = t2.line, c = t3.line from taddress t0 left join tmp t1 on t1.id = t0.id and t1.rn=1 left join tmp t2 on t2.id = t0.id and t2.rn=2 left join tmp t3 on t3.id = t0.id and t3.rn=3 </code></pre>

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