Pro*C程序中Oracle和C之间的类型变换规则

Pro*c程序中Oracle和C之间的类型变换规则：

VARCHAR2(n)	char[n+1]
CHAR	char[1+1]
CHAR(n)	char[n+1]
NUMBER	VARCHAR[38+2]
NUMBER(p)	int            p < 10 double         10 <= p < 16 VARCHAR[n]  p >= 16
NUMBER(p,s)	p < 16   时：double p >= 16  时：VARCHAR[n] 当s <= 0 时：n = p - s + 1 当s > 0时： p > s  时：n = p + 2       p <= s 时：n = p + 3
DATE	char[14+1]
LONG	VARCHAR[32761]
RAW	unsigned char[256]
LONG RAW	VARCHAR[32761]
ROWID	unsigned char[256]
MLSLABEL	unsigned char[8]