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INVALID_ LONGITUDE_ COUNT (system data metric function)¶
Returns the count of column values that are not a valid longitude: values outside the range -180 to 180.
This topic provides the syntax for calling the function directly. To learn how to associate the function with a table or view so it runs at regular intervals, see Associate a DMF.
Syntax¶
Arguments¶
querySpecifies a SQL query that projects a single column.
Allowed data types¶
The column projected by the query must have one of the following data types:
- FLOAT
- NUMBER
Returns¶
The function returns a NUMBER value. NULL values are not counted.
Usage notes¶
- The range is inclusive, so -180 and 180 are valid.
Example¶
Measure the number of invalid longitude values in the longitude column: