REPLACE ALL MyField WITH m.MyValuethough that locks the whole table I believe, and it is generally better to scan the table
SCAN REPLACE MyField WITH m.MyValue ENDSCANBoth of these can have conditions added, as per the FoxPro help,
REPLACE ALL MyField WITH m.MyValue WHERE MyField = 0If this is not what you meant by your question, sorry, you may need to explain a little more.