mongodb select php操作 命令行操作

{ "_id" : 1, "title" : "红楼梦", "auther" : "曹雪芹", "typeColumn" : "test", "money" : 80, "code" : 10 } { "_id" : 2, "title" : "围城", "auther" : "钱钟书", "typeColumn" : "test", "money" : 56, "code" : 20 } { "_id" : 3, "title" : "朝发白帝城", "auther" : "李白", "typeColumn" : "test", "money" : 30, "code" : 30 } { "_id" : 4, "title" : "将近酒", "auther" : "李白", "money" : 90, "code" : 40 }

> db.books.count(); 4 > db.books.find().count(); 4 > db.books.count({auther: "李白" }); 2 > db.books.find({money:{$gt:40,$lte:60}}).count(); 1 > db.books.count({money:{$gt:40,$lte:60}}); 1

$collection->count(); //结果：4 $collection->find()->count(); //结果：4 $collection->count(array("auther"=>"李白")); //结果：2 $collection->find(array("money"=>array('$gt'=>40,'$lte'=>60)))->count(); //结果：1 $collection->count(array("money"=>array('$gt'=>40,'$lte'=>60))); //结果：1

> db.books.findOne(); { ??????? "_id" : 1, ??????? "title" : "红楼梦", ??????? "auther" : "曹雪芹", ??????? "typeColumn" : "test", ??????? "money" : 80, ??????? "code" : 10 } > db.books.findOne({auther: "李白" }); { ??????? "_id" : 3, ??????? "title" : "朝发白帝城", ??????? "auther" : "李白", ??????? "typeColumn" : "test", ??????? "money" : 30, ??????? "code" : 30 }

$collection->findOne(); $collection->findOne(array("auther"=>"李白"));

> db.books.find( { $query: {auther: "李白" }, $snapshot: true } ); { "_id" : 3, "title" : "朝发白帝城", "auther" : "李白", "typeColumn" : "test", "money" : 30, "code" : 30 } { "_id" : 4, "title" : "将近酒", "auther" : "李白", "money" : 90, "code" : 40 }

/** * 注意: * 在我们做了find()操作，获得 $result 游标之后，这个游标还是动态的. * 换句话说,在我find()之后,到我的游标循环完成这段时间,如果再有符合条件的记录被插入到collection,那么这些记录也会被$result 获得. */ $result = $collection->find(array("auther"=>"李白"))->snapshot(); foreach ($result as $id => $value) { var_dump($value); }

> db.books.find({},{"money":0,"auther":0}); //money和auther不显示 { "_id" : 1, "title" : "红楼梦", "typeColumn" : "test", "code" : 10 } { "_id" : 2, "title" : "围城", "typeColumn" : "test", "code" : 20 } { "_id" : 3, "title" : "朝发白帝城", "typeColumn" : "test", "code" : 30 } { "_id" : 4, "title" : "将近酒", "code" : 40 } > db.books.find({},{"title":1}); //只显示title列 { "_id" : 1, "title" : "红楼梦" } { "_id" : 2, "title" : "围城" } { "_id" : 3, "title" : "朝发白帝城" } { "_id" : 4, "title" : "将近酒" } /** *money在60到100之间，typecolumn和money二列必须存在 */ > db.books.find({money:{$gt:60,$lte:100}},{"typeColumn":1,"money":1}); { "_id" : 1, "typeColumn" : "test", "money" : 80 } { "_id" : 4, "money" : 90 }

$result = $collection->find()->fields(array("auther"=>false,"money"=>false)); //不显示auther和money列 $result = $collection->find()->fields(array("title"=>true)); //只显示title列 /** *money在60到100之间，typecolumn和money二列必须存在 */ $where=array('typeColumn'=>array('$exists'=>true),'money'=>array('$exists'=>true,'$gte'=>60,'$lte'=>100)); $result = $collection->find($where);

> db.books.find().skip(1).limit(1); //跳过第条，取一条 { "_id" : 2, "title" : "围城", "auther" : "钱钟书", "typeColumn" : "test", "money" : 56, "code" : 20 }

$result = $collection->find()->limit(1)->skip(1);//跳过 1 条记录，取出 1条

> db.books.find().sort({money:1,code:-1}); //1表示降序 -1表示升序,参数的先后影响排序顺序? { "_id" : 3, "title" : "朝发白帝城", "auther" : "李白", "typeColumn" : "test", "money" : 30, "code" : 30 } { "_id" : 2, "title" : "围城", "auther" : "钱钟书", "typeColumn" : "test", "money" : 56, "code" : 20 } { "_id" : 1, "title" : "红楼梦", "auther" : "曹雪芹", "typeColumn" : "test", "money" : 80, "code" : 10 } { "_id" : 4, "title" : "将近酒", "auther" : "李白", "money" : 90, "code" : 40 }

$result = $collection->find()->sort(array('code'=>1,'money'=>-1));

> db.books.find({"title":/城/}); //like '%str%' 糊查询集合中的数据 { "_id" : 2, "title" : "围城", "auther" : "钱钟书", "typeColumn" : "test", "money" : 56, "code" : 20 } { "_id" : 3, "title" : "朝发白帝城", "auther" : "李白", "typeColumn" : "test", "money" : 30, "code" : 30 } > db.books.find({"auther":/^李/}); //like 'str%' 糊查询集合中的数据 { "_id" : 3, "title" : "朝发白帝城", "auther" : "李白", "typeColumn" : "test", "money" : 30, "code" : 30 } { "_id" : 4, "title" : "将近酒", "auther" : "李白", "money" : 90, "code" : 40 } > db.books.find({"auther":/书$/}); //like '%str' 糊查询集合中的数据 { "_id" : 2, "title" : "围城", "auther" : "钱钟书", "typeColumn" : "test", "money" : 56, "code" : 20 } > db.books.find( { "title": { $regex: '城', $options: 'i' } } ); //like '%str%' 糊查询集合中的数据 { "_id" : 2, "title" : "围城", "auther" : "钱钟书", "typeColumn" : "test", "money" : 56, "code" : 20 } { "_id" : 3, "title" : "朝发白帝城", "auther" : "李白", "typeColumn" : "test", "money" : 30, "code" : 30 }

$param = array("title" => new MongoRegex('/城/')); $result = $collection->find($param); $param = array("auther" => new MongoRegex('/^李/')); $result = $collection->find($param); $param = array("auther" => new MongoRegex('/书$/')); $result = $collection->find($param);

> db.books.find( { money: { $in: [ 20,30,90] } } ); //查找money等于20，30，90的数据 { "_id" : 3, "title" : "朝发白帝城", "auther" : "李白", "typeColumn" : "test", "money" : 30, "code" : 30 } { "_id" : 4, "title" : "将近酒", "auther" : "李白", "money" : 90, "code" : 40 } > db.books.find( { auther: { $in: [ /^李/,/^钱/ ] } } ); //查找以李，钱开头的数据 { "_id" : 2, "title" : "围城", "auther" : "钱钟书", "typeColumn" : "test", "money" : 56, "code" : 20 } { "_id" : 3, "title" : "朝发白帝城", "auther" : "李白", "typeColumn" : "test", "money" : 30, "code" : 30 } { "_id" : 4, "title" : "将近酒", "auther" : "李白", "money" : 90, "code" : 40 }

$param = array("money" => array('$in'=>array(20,30,90))); $result = $collection->find($param); foreach ($result as $id=>$value) { var_dump($value); } $param = array("auther" => array('$in'=>array(new MongoRegex('/^李/'),new MongoRegex('/^钱/')))); $result = $collection->find($param); foreach ($result as $id=>$value) { var_dump($value); }

> db.books.find( { $or: [ { money: 20 }, { money: 80 } ] } ); //查找money等于20，80的数据 { "_id" : 1, "title" : "红楼梦", "auther" : "曹雪芹", "typeColumn" : "test", "money" : 80, "code" : 10 }

$param = array('$or'=>array(array("money"=>20),array("money"=>80))); $result = $collection->find($param); foreach ($result as $id=>$value) { var_dump($value); }

> db.books.distinct( 'auther' ); [ "曹雪芹", "钱钟书", "李白" ] > db.books.distinct( 'auther' , { money: { $gt: 60 } }); [ "曹雪芹", "李白" ]

$result = $curDB->command(array("distinct" => "books", "key" => "auther")); foreach ($result as $id=>$value) { var_dump($value); } $where = array("money" => array('$gte' => 60)); $result = $curDB->command(array("distinct" => "books", "key" => "auther", "query" => $where)); foreach ($result as $id=>$value) { var_dump($value); }