数値リテラルの構文

ODBC の数値リテラルには、次の構文が使用されます。

numeric-literal ::= signed-numeric-literal | unsigned-numeric-literal

signed-numeric-literal ::= [sign] unsigned-numeric-literal

unsigned-numeric-literal ::= exact-numeric-literal | approximate-numeric-literal

exact-numeric-literal ::= unsigned-integer [period[unsigned-integer]] |period unsigned-integer

sign ::= plus-sign | minus-sign

approximate-numeric-literal ::= 仮数 E 指数

mantissa ::= exact-numeric-literal

exponent ::= signed-integer

signed-integer ::= [sign] unsigned-integer

unsigned-integer ::= digit...

プラス記号 ::= +

負符号 ::= -

digit ::= 1 |2 |3 |4 |5 |6 |7 |8 |9 |0

period ::= 。