REGR_SLOPE

REGR_SLOPE returns the slope of a line.

Syntax

REGR_SLOPE (expression1, expression2) OVER (window_clause)

Remarks

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The return value is a numeric data type and can be NULL.

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After the elimination of NULL expression1-expression2 pairs, REGR_SLOPE makes the following computation:

COVAR_POP (expression1, expression2) / VAR_POP (expression2)

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Without a window clause, REGR_SLOPE is a simple aggregate function. Refer Window Clause