¿Cómo tomar los últimos cuatro personajes de un varchar?
Estoy tratando de tomar los últimos cuatro caracteres solo de un campo varchar. Todas las filas tienen diferentes longitudes. ¿Qué función debo usar para lograr esto?
56
Author: Robert Harvey, 2012-09-20
5 answers
El derecho debe hacer:
select RIGHT('abcdeffff',4)
147
Author: Void Ray,
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2012-09-20 01:27:21
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2012-09-20 01:27:21
SUBSTR(column, LENGTH(column) - 4, 4)
LENGTH devuelve la longitud de la cadena y SUBSTR devuelve 4 caracteres de"the position length - 4"
11
Author: drchris,
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2017-08-13 09:07:55
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2017-08-13 09:07:55
Utilice la función RIGHT(): http://msdn.microsoft.com/en-us/library/ms177532 (v = sql.105).aspx
SELECT RIGHT( '1234567890', 4 ); -- returns '7890'
8
Author: Tim Medora,
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2012-09-20 01:27:51
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2012-09-20 01:27:51
RIGHT ( character_expression , integer_expression )
SELECT RIGHT(column, 4) FROM ...
También una lista de otras funciones de cadena.
7
Author: Brad Christie,
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2012-09-20 01:28:03
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2012-09-20 01:28:03
Para Oracle SQL, SUBSTR(column_name, -# of characters requested) extraerá los últimos tres caracteres para una consulta dada. por ejemplo,
SELECT SUBSTR(description,-3) FROM student.course;
5
Author: alexanderjsingleton,
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2018-09-21 03:15:26
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2018-09-21 03:15:26