发布于 2015-09-14 14:58:16 | 142 次阅读 | 评论: 0 | 来源: 网络整理

$gte

Syntax: {field: {$gte: value} }

$gte selects the documents where the value of the field is greater than or equal to (i.e. >=) a specified value (e.g. value.)

Consider the following example:

db.inventory.find( { qty: { $gte: 20 } } )

This query would select all documents in inventory where the qty field value is greater than or equal to 20.

Consider the following example which uses the $gte operator with a field from an embedded document:

db.inventory.update( { "carrier.fee": { $gte: 2 } }, { $set: { price: 9.99 } } )

This update() operation will set the value of the price field that contain the embedded document carrier whose``fee`` field value is greater than or equal to 2.

也可以参考

find(), update(), $set.

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