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I need to fetch all the rows where the 'zip' field is less than 5 characters. How can I achieve this using only SQL? I google'd first, but only found info on CHAR_LENGTH().
ie, psudeo code: SELECT * FROM users WHERE STRLEN(zip_code) < 5
Thanks!
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To select data where a field has min value, you can use aggregate function min(). The syntax is as follows. SELECT *FROM yourTableName WHERE yourColumnName=(SELECT MIN(yourColumnName) FROM yourTableName);
SUBSTRING() : function in MySQL is used to derive substring from any given string . It extracts a string with a specified length, starting from a given location in an input string. The purpose of substring is to return a specific portion of the string.
For MySQL you would use the LENGTH() function ie.
select * from users where length(zip_code) < 5
Refer to the docs at http://dev.mysql.com/doc/refman/5.1/en/string-functions.html#function_length for more information.
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