How to rewrite column from oracle to infromix

StackOverflow https://stackoverflow.com/questions/22449177

  •  15-06-2023
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Question

In oracle I have defined column like this:

column_name varchar2(1024 char)

how should I rewrite it to informix db ?

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Solution

While VARCHAR Infomix type is limited to 255 chars I would use LVARCHAR type which is limited to 32,739 bytes.

The 2nd problem is (1024 char) which means that Oracle can save 1024 chars. In encoding like UTF-8 this is not equal to 1024 bytes. For example Polish letters: ąęćŃŻŚ are saved with 2 bytes so text with 1024 Polish letters will use 2048 bytes.

Informix uses bytes length so you must know your encoding and data. For Polish text in UTF8 encoding I would translate varchar2(1024 char) into lvarchar(2048).

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