ThinkPHP5框架實(shí)現(xiàn)簡(jiǎn)單的批量查詢(xún)功能示例

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//使用EXP條件表達(dá)式，表示后面是原生的SQL表達(dá)式
$result = Db::table('think_inno')->where('id','exp',"10 and name='asd'")->select();
dump($result);
//使用and和or進(jìn)行混合查詢(xún)
$result = Db::table('think_inno')
->where('name','like','%think%')   //name類(lèi)似%thinkphp%
->where('id',['in',[1,2,3]],['>=',1],'or')  //id在1~3之間，或者id>=1
->limit(2)
->select();
//批量查詢(xún)
$result = Db::table('think_inno')  //批量查詢(xún)
->where(['id' => [['in',[1,2,3]],['>=',1],'or'], 'name' => ['like','%think%']]) //(id在1~3中或者id>=1 )并且name類(lèi)似think
->limit(10)
->select();
//快速查詢(xún)
$result = Db::table('think_inno')->where('idnum','>',1)->select();
idnum表示and；idnum表示or；
//關(guān)于視圖
將查詢(xún)的結(jié)果作為一張?zhí)摂M的表；TP里直接用Db::view來(lái)使用視圖
$result = Db::view('think_inno','id,name')......;  //think-inno為表名，id,name為要查的字段
//使用query對(duì)象
$query = new \think\db\Query;$query->table('think_inno')->where('name','like','think')->where('id','>=','3')->limit(10);
$result = Db::select($query);
print_r($result);
//獲取某列某行的某個(gè)值
$name = Db::table('think_inno')->where('id',10)->value('name');
print_r($name); //取到id為10的name字段的值
//獲取某列column
$name = Db::table('think_inno')->where('status',1)->column('name');
//取出status為1對(duì)應(yīng)name列的所有值
//獲取某一行find
//獲取id鍵名的數(shù)據(jù)集
$name = Db::table('think_inno')->where('num',0)->column('*','id');
print_r($name);
//聚合查詢(xún)count、max、min、avg、sum
$count = Db::table('think_inno')->where('num',0)->count();//獲取num為0的對(duì)應(yīng)的數(shù)據(jù)量
$count = Db::table('think_inno')->where('num',2)->max('id');//獲取num為2的最大的id