This section contains the following topics:
We recommend the following guidelines for using the BigText, Code, and Text data types:
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Use the BigText data type for large documents.
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If a text field is part of a primary key, then use the Code data type.
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If a text field has a TableRelation, then use the Code data type.
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If the field is assigned values from a Code field, then use the Code data type. For example, if the Document No. field in the G/L Entry table is copied from the primary key field No. in the Sales Header or Purchase Header table, then use the Code data type for the Document No. field.
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For all other text fields, use the Text data type.
In addition to the system functions that are available for string data types, you can also use C/AL operators on strings. For example, to concatenate two strings, use the + operator. For more information, see C/AL Operators.