Teradata windows function

The moving average for the 6th row would have considered row 6, plus rows 4, 5, 3, and 2 that is, 5 rows in all. For the MSUM function, the total number of rows in the aggregation group is the value of width. The moving sum for the 6th row of a partition, for example, would have considered row 6, plus rows 5, 4, 3, 2, and 1 that is, 6 rows in all.

If the offset is null or greater than the number of values in the window, null is returned. It is an error for the offset to be zero or negative. Returns the value at offset rows after the current row in the window. Offsets start at 0 , which is the current row. The default offset is 1. Returns the value at offset rows before the current row in the window Offsets start at 0 , which is the current row.

Teradata Distribution of Presto 0. Overview 2. System Requirements 3. Getting Started 4. Presto Installation on a Sandbox VM 5. Presto Server Installation on a Cluster Ambari 6. Presto Client Software 9. Presto Admin YARN Integration Administration Connectors Security Functions and Operators Logical Operators Comparison Functions and Operators Conditional Expressions Conversion Functions Sign up or log in Sign up using Google.

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