Data cleaning: Difference between revisions
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m (Planetoid移動Is null頁面至Data cleansing) |
m (Planetoid移動Data cleansing頁面至Data cleaning) |
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Revision as of 18:24, 8 January 2014
Finds whether a variable is NULL
- PHP is_null
- Google spreadsheet:
- ISERR(value) " value - The value to be verified as an error type other than #N/A." ex: #NULL!
- If the value is exactly NULL not #NULL!, You may use EXACT(value, "NULL")