TP運(yùn)算符

2019.09.06 | 2097閱讀 | 0條評(píng)論 | php

	SQL運(yùn)算符	例子	實(shí)際查詢條件
eq	=	$map['id'] = array('eq',100);	等效于：$map['id'] = 100;
neq	!=	$map['id'] = array('neq',100);	id != 100
gt	>	$map['id'] = array('gt',100);	id > 100
egt	>=	$map['id'] = array('egt',100);	id >= 100
lt	<	$map['id'] = array('lt',100);	id < 100
elt	<=	$map['id'] = array('elt',100);	id <= 100
like	like	$map<'username'> = array('like','Admin%');	username like 'Admin%'
between	between and	$map['id'] = array('between','1,8');	id BETWEEN 1 AND 8
not between	not between and	$map['id'] = array('not between','1,8');	id NOT BETWEEN 1 AND 8
in	in	$map['id'] = array('in','1,5,8');	id in(1,5,8)
not in	not in	$map['id'] = array('not in','1,5,8');	id not in(1,5,8)
and（默認(rèn)）	and	$map['id'] = array(array('gt',1),array('lt',10));	(id > 1) AND (id < 10)
or	or	$map['id'] = array(array('gt',3),array('lt',10), 'or');	(id > 3) OR (id < 10)
xor（異或）	xor	兩個(gè)輸入中只有一個(gè)是true時(shí)，結(jié)果為true，否則為false，例子略。	1 xor 1 = 0
exp	綜合表達(dá)式	$map['id'] = array('exp','in(1,3,8)');	$map['id'] = array('in','1,3,8');

exp 不是一個(gè)運(yùn)算符，而是一個(gè)綜合表達(dá)式以支持更復(fù)雜的條件設(shè)置。exp 的操作條件不會(huì)被當(dāng)成字符串，可以使用任何 SQL 支持的語(yǔ)法，包括使用函數(shù)和字段名稱。