TDV Adapter for IBM Cloud Object Storage

Build 24.0.9060

Aggregate Functions

Examples of Aggregate Functions

Below are several examples of SQL aggregate functions. You can use these with a GROUP BY clause to aggregate rows based on the specified GROUP BY criterion. This can be a reporting tool.

COUNT

Returns the number of rows matching the query criteria.

SELECT COUNT(*) FROM Objects WHERE Bucket = 'testBucket'

COUNT(DISTINCT)

Returns the number of distinct, non-null field values matching the query criteria.

SELECT COUNT(DISTINCT Key) AS DistinctValues FROM Objects WHERE Bucket = 'testBucket'

AVG

Returns the average of the column values.

SELECT Etag, AVG(AnnualRevenue) FROM Objects WHERE Bucket = 'testBucket' GROUP BY Etag

MIN

Returns the minimum column value.

SELECT MIN(AnnualRevenue), Etag FROM Objects WHERE Bucket = 'testBucket' GROUP BY Etag

MAX

Returns the maximum column value.

SELECT Etag, MAX(AnnualRevenue) FROM Objects WHERE Bucket = 'testBucket' GROUP BY Etag

SUM

Returns the total sum of the column values.

SELECT SUM(AnnualRevenue) FROM Objects WHERE Bucket = 'testBucket'

COUNT

Returns the number of rows matching the query criteria.

SELECT COUNT(*) FROM Objects WHERE Bucket = 'testBucket'

COUNT(DISTINCT)

Returns the number of distinct, non-null field values matching the query criteria.

SELECT COUNT(DISTINCT Key) AS DistinctValues FROM Objects WHERE Bucket = 'testBucket'

AVG

Returns the average of the column values.

SELECT Etag, AVG(AnnualRevenue) FROM Objects WHERE Bucket = 'testBucket'  GROUP BY Etag

MIN

Returns the minimum column value.

SELECT MIN(AnnualRevenue), Etag FROM Objects WHERE Bucket = 'testBucket' GROUP BY Etag

MAX

Returns the maximum column value.

SELECT Etag, MAX(AnnualRevenue) FROM Objects WHERE Bucket = 'testBucket' GROUP BY Etag

SUM

Returns the total sum of the column values.

SELECT SUM(AnnualRevenue) FROM Objects WHERE Bucket = 'testBucket'

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Build 24.0.9060