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Using QGIS in the operation 'select by expression' how is the correct expression to select multiple field value? ex. City NAME = ROME and NAPLES (expression is invalid)
You can also use the SQL IN operator
"City Name" IN ('ROME','NAPLES')
Do you mean:
"City Name" = 'ROME' OR "City Name" = 'NAPLES' OR ....
Required, but never shown