Ingres 9.2 Migration Guide - Actian

DBMS Server EnhancementsAdditional SQL FunctionsNew SQL functions ease application migration.New numeric scalar functions include: • round - Returns a numeric value, rounded to the specified length or precision• ceiling - Returns smallest integer greater than or equal to the argument• floor - Returns largest integer less than or equal to the argument• truncate - Truncates x to y decimal places• atan2 - Arctangent of angle defined by coordinate pair (x, y)• acos(n) - Arccosine of cosine value n• asin - Arcsine value of sine value n• tan - Tangent value of angle n• pi - Value of pi (ratio of the circumference of a circle to its diameter)• sign - Returns -1 if n < 0, 0 if n = 0, +1 if n > 0For further details, see the section Numeric Functions in the SQL ReferenceGuide.New string scalar functions include:• chr - Converts integer into corresponding ASCII code.• ltrim - Returns a character expression with leading blanks removed• rtrim - Returns a character string with trailing blanks removed• lpad - Returns specified character string of specified length left-padded byblanks or copies of the second expression• rpad - Returns specified character string of specified length right-paddedby blanks or copies of the second expression• replace - Replaces all occurrences of a specified string value with anotherstring value• byteextract - Returns the nth byte of the specified string.Note: Byteextract can replace charextract, which now handles multi-bytecharacters and whose returned data type has changed from char(1) tovarchar(4).For further details, see the section String Functions Supported in the SQLReference Guide.Features Introduced in Ingres 9.2 147