SMALLINT function returns a small integer representation of a
number or character string, in the form of a small integer constant.
SMALLINT ( NumericExpression | CharacterExpression )
An expression that returns a value of any built-in numeric data type.
An expression that returns a character string value of length not greater than the maximum length of a character constant. Leading and trailing blanks are eliminated and the resulting string must conform to the rules for forming an SQL integer constant. The value of the constant must be in the range of small integers. The character string cannot be a long string.
The result of the function is a
SMALLINT. If the argument can be
NULL, the result can be
NULL. If the argument is
NULL, the result
If the argument is a NumericExpression, the result is the same number that would occur if the argument were assigned to a small integer column or variable. If the whole part of the argument is not within the range of small integers, an error occurs. The decimal part of the argument is truncated if present.
If the argument is a CharacterExpression, the result is the same number that would occur if the corresponding integer constant were assigned to a small integer column or variable.
Pitching table from our Doc Examples database, select the
Era column in big integer form for further processing in the
splice> SELECT ID, SMALLINT(Era) "ERA" FROM Pitching WHERE MOD(ID,2) = 0; ID |ERA ------------- 28 |2 30 |4 32 |3 34 |5 36 |3 38 |5 40 |5 42 |2 44 |5 46 |2 48 |5 72 |2 74 |3 76 |2 78 |3 80 |1 82 |3 84 |2 86 |2 88 |0 90 |2 92 |2 94 |2 23 rows selected