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In DB2, is there a datatype that allows the string to grow and shrink dynamically like the Varchar(Max) datatype in SQL Server database?
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Values in VARCHAR columns are variable-length strings. The length can be specified as a value from 0 to 65,535. The effective maximum length of a VARCHAR is subject to the maximum row size (65,535 bytes, which is shared among all columns) and the character set used.
CHAR, VARCHAR, and VARCHAR(MAX) CHAR columns should be used for columns that vary little in length. String values that vary significantly in length and are no longer than 8,000 bytes should be stored in a VARCHAR column. If you have huge strings (over 8,000 bytes), then VARCHAR(MAX) should be used.
The VARCHAR function returns a varying-length character string representation of one of the following values: An integer number if the first argument is a SMALLINT, INTEGER, or BIGINT. A decimal number if the first argument is a decimal number.
No, according to this and this, DB2 doesn't have a large capacity text type.
You can use the VARCHAR(n) data type for text. Please keep in mind that n is the maximum length of bytes and not the character length. The maximum length is 32704 in byte. This is important if you are using a UTF-8 encoded database.
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