namespaceIlluminate\Support\Facades;...*@methodstaticarrayselect(string$query,array$bindings=[],bool$useReadPdo=true)...*@see\Illuminate\Database\DatabaseManager*/classDBextendsFacade{protectedstaticfunctiongetFacadeAccessor(){return'db';}} DB门面 只有注释,返回的是 db 别名 。 'db'=>[\Illuminate...
>>> $results = DB::select('select* from dbname.contentRepository limit1'); Illuminate\Database\QueryExceptionwithmessage'SQLSTATE[HY000]: Generalerror:1615Prepared statement needstobe re-prepared (SQL:select* from dbname.contentRepository limit1)' Try unprepared query: >>>DB::unprepared(...
}//DB::connection()->enableQueryLog();$data= User::from('user as u')->leftJoin('roles as r','r.id','=','u.roles_id')->select('u.id','u.create_time','r.roles_name','u.username')->where($where)->orderBy('u.id', 'desc')->paginate($param['size'],'*',$pageName=...
1<?php2namespace App;3useIlluminate\Database\Eloquent\Model;4classStudentextendsModel{5//指定表名6protected$table= 'vipinfo';7//指定主键8protected$primaryKey= 'vip_ID';9} 在Student控制器里增加一个test3方法,配置路由Route::get('test3',['uses'=>'StudentController@test3']); 1publicfunction...
SELECT...From(SELECTsum(game_count)ASsum_count,max(game_count)ASmax_count,game_room_id,record_dateFROM`tb_xx_snapshot`WHERErecord_dateBETWEEN'2017-05-17'AND'2017-05-23'ANDtype='1'GROUPBYgame_room_id)asmainINNERJOIN`tb_xx_snapshot`AS`tb_gg`ONtb_gg.game_count=main.max_count and tb...
...null查询 NULL 查询就是判断某个字段是否为空的查询,Laravel查询构建器为我们提供了 whereNull 方法用于实现该查询: DB::table('users')->whereNull(...,如果右表中的行在左表中没有匹配行,则结果中左表中的对应列返回空值,如 select * from posts p right join users u on p.user_id = u.id ...
Of course, you may not always want to select all columns from a database table. Using the select method, you can specify a custom select clause for the query:$users = DB::table('users')->select('name', 'email as user_email')->get();...
Get a single column's value from the first result of the query or throw an exception.Collection|Builder[] get(array|string $columns = ['*']) Execute the query as a "select" statement.Model[]|Builder[] getModels(array|string $columns = ['*']) Get the hydrated models without ea...
SELECT 列表中不能包含任何对 BLOB、ARRAY、CLOB 或者 NCLOB 类型值的引用 子查询不能直接用在集合函数中 B- ETWEEN 操作符不能同子查询一起使用,但是 BETWEEN 操作符可以用在子查询中 举个例子 来看个示例,示例中子查询用作 SELECT 语句中名为 MaxUnitPrice 的列表达式。示例来自 子查询(SQL Server)。 USE...
"SELECT money FROM invest WHERE DATE_ADD(time,INTERVAL day day) >= ? AND uid=?", [$now, $this->getId()]); 返回数据格式是php原生数组 array, 数组元素是stdClass类型 array(1) { [0]=> object(stdClass)#1322 (1) { ["money"]=> ...