| string ||
string | bytea | ʸ������
| '\\\\Post'::bytea || '\\047gres\\000'::bytea | \\Post'gres\000 |
| octet_length(string) | integer | �Х��ʥ���ΥХ��ȿ� | octet_length( 'jo\\000se'::bytea) | 5 |
| position(substring in string) | integer | ���ꤵ�줿��ʬʸ����ξ�� | position('\\000om'::bytea in 'Th\\000omas'::bytea) | 3 |
| substring(string [from integer] [for integer]) | bytea | ��ʬʸ����μ��Ф�
| substring('Th\\000omas'::bytea from 2 for 3) | h\000o |
| trim([both]
bytes from
string)
| bytea | bytes�ǻ��ꤵ���Х��ȤΤߤ�ޤ�Ǥ�Ĺ��ʸ�����string����Ƭ���������������ޤ���
| trim('\\000'::bytea from '\\000Tom\\000'::bytea) | Tom |
| get_byte(string, offset) | integer | ʸ����1�Х��Ȥ���Ф���
| get_byte('Th\\000omas'::bytea, 4) | 109 |
| set_byte(string,
offset, newvalue) | bytea | ʸ�������1�Х��Ȥ����ꤹ�롣
| set_byte('Th\\000omas'::bytea, 4, 64) | Th\000o@as |
| get_bit(string, offset) | integer | ʸ����1�ӥåȤ���Ф���
| get_bit('Th\\000omas'::bytea, 45) | 1 |
| set_bit(string,
offset, newvalue) | bytea | ʸ�������1�ӥåȤ����ꤹ�롣
| set_bit('Th\\000omas'::bytea, 45, 0) | Th\000omAs |