Final answer:
A data constraint is a true limitation on data values in databases and software, ensuring data integrity and quality by enforcing specific conditions for data entry.
Step-by-step explanation:
A data constraint is indeed a limitation on data values, which makes the statement True. Data constraints are rules applied to data fields in databases or software to ensure the integrity and quality of data.
They can specify a range of valid values, data types, uniqueness, and other properties necessary for the data to be valid.
Constraints prevent errors in data entry and help maintain data accuracy by ensuring that only data fitting specific conditions is entered or processed. Examples of data constraints include primary keys, foreign keys, unique constraints, not null constraints, and check constraints.
Therefore, A data constraint is a limitation on data values. This statement is true.