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REPLACE a certain string in a certain field

Posted on 2014-04-15
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Last Modified: 2014-04-15
Hi there,

I have hundreds of  text strings in a specific field of a certain table with none or exactly these two "words": <semantics> and  </semantics>

I want to REPLACE the whole string presented, BUT excluding the two above "words" present at them, if it is the case.

Example: one possible data contained in the field is:

<p>Question 06: If  <math>   <semantics>    <mrow>     <mtext>&#8201;</mtext><mtext>&#8201;</mtext><mi>x</mi><mo>+</mo><mi>y</mi><mo>=</mo><mi>a</mi><mtext>&#8201;</mtext><mtext>&#8201;</mtext><mtext>&#8201;</mtext>    </mrow>    <annotation encoding='MathType-MTEF'>MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbwvMCKfMBHbqedmvETj2BSbqefm0B1jxALjhiov2DaerbuLwBLnhiov2DGi1BTfMBaebbnrfifHhDYfgasaacH84rpq0xbbf9q8WrFfeuY=Hhbbf9v8qqGqFr0xc9LqFj0lXxbba9Lqpepi0xhr=Fc9vqpeuj0lXdb9GqFj0dd9qqaqpi0xe9Gq=Fhrpe0dc8meaabaqaciaacaGaaeqabaWaaqaafaaakeaacaaMc8UaaGPaVlaadIhacqGHRaWkcaWG5bGaeyypa0JaamyyaiaaykW7caaMc8UaaGPaVdaa@46B9@</annotation>   </semantics>  </math> </p>

And I want to have it substituted by this one:

<p>Question 06: If  <math>    <mrow>     <mtext>&#8201;</mtext><mtext>&#8201;</mtext><mi>x</mi><mo>+</mo><mi>y</mi><mo>=</mo><mi>a</mi><mtext>&#8201;</mtext><mtext>&#8201;</mtext><mtext>&#8201;</mtext>    </mrow>    <annotation encoding='MathType-MTEF'>MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbwvMCKfMBHbqedmvETj2BSbqefm0B1jxALjhiov2DaerbuLwBLnhiov2DGi1BTfMBaebbnrfifHhDYfgasaacH84rpq0xbbf9q8WrFfeuY=Hhbbf9v8qqGqFr0xc9LqFj0lXxbba9Lqpepi0xhr=Fc9vqpeuj0lXdb9GqFj0dd9qqaqpi0xe9Gq=Fhrpe0dc8meaabaqaciaacaGaaeqabaWaaqaafaaakeaacaaMc8UaaGPaVlaadIhacqGHRaWkcaWG5bGaeyypa0JaamyyaiaaykW7caaMc8UaaGPaVdaa@46B9@</annotation>  </math> </p>

(Of course the bold ... is present only here, for the sake of clearness.)

Thanks,
fskilnik.
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Question by:fskilnik
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2 Comments
 
LVL 40

Accepted Solution

by:
Kyle Abrahams earned 2000 total points
ID: 40001640
update table
set field = replace(replace(field, '<semantics>', ''), '</semantics>', '')

to test it out and make sure this is what you want:

select replace(replace(field, '<semantics>', ''), '</semantics>', '')
from table
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Author Closing Comment

by:fskilnik
ID: 40001697
Perfect, Kyle! Thanks a lot.

Regards,
fskilnik.
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