Tags: nstat creat iterative OTA database data upd LTE Zhang criteria After the successful start of MongoDB, and then open a command line window input MONGO, you can do some of the database operations. Enter help to see the basic Operations Command: Show DBS: Display Database listShow Collections: Displays a collection in the current database (similar to a table in a relational database)Show Users: Show user Use Db.help (): Show database Operations Com
equal to 19 yearsDb.employee.find ({"Age": {"$lte":}}). Pretty ();Example 7: Query gender is not a woman's recordDb.employee.find ({"Sex": {"$ne": "Female"}}). Pretty ();Logical operationsand $andor $orNon-$not $norExample 8: Querying a record of age between 10~20Db.employee.find ({"Age": {"$GT": Ten, "$lte": $}});d B.employee.find ({"Age": {"$GT": Ten, "$lte":]
documents all content db.stu.find (); Query the gender property of all documents Db.stu.find ({},{gender:1}) queries the gender property of all documents and does not query the _id property Db.stu.find ({},{gender:1,_id:0}) IV: Drill-down query expression1: The simplest query expression {Filed:value} refers to a document that queries the value of the field column2: $ne---! =query Expression {field:{$nq: value}} effect--check that the value of filed column is not equal to the document of value $
to note that if the number of words skip will become very slow, all the database has this problem, you can skip paging, with the last record as a conditionDb.blog.find ({"Age": {"$gte": +, "$lte": ()}) select * from blog where age>=27 and age$GT >$gte >=$lt $lte $ne! =$in: In$nin: Not in$all: All$not: Anti-matchQuery Creation_date > 2010-01-01 ' and creation_date Db.users.find ({creation_date:{$gt: new Dat
I. Turbo coding and decoding principleThe Turbo encoder is a parallel cascade convolutional encoding (Pccc,parallel concatenated convolutionalcode), which uses two 8-state sub-encoders and a turbo-in-code interleaving device. The code rate for the Turbo encoder is 1/3.Two. Emulation Link:Channel environment: Gaussian White NoiseSimulation parameters: R =1/3, constraint length =9,map interleaving: LTE interleaving deviceSimulation results:
clustered collection after the query is removed > db.userInfo.distinct ("name"); Will filter out the same data in name Equivalent: Select Distict name from UserInfo; 3. Check the record of age = 22 > Db.userInfo.find ({"Age": 22}); Equivalent to: SELECT * from userInfo where age = 22; 4. Check the records of age > 22 > Db.userInfo.find ({age: {$gt: 22}}); Equivalent to: SELECT * from UserInfo where age > 22; 5. Check the records of age > Db.userInfo.find ({age: {$lt: 22}}); Equivalent to: SELE
Tags: col style LTE ice query statement back greater--sanGossip lessFind the product information----The price is less than 200 contains the product name, the goods number, the price, adds the information and so onDb.goods.find ({"Shop_price": {$lt: $}},{"Shop_price":1,"Goods_name":1,"goods_id":1,"Add_time":1})Items not classified as 3Db.goods.find ({"cat_id": {$ne:3}},{"Shop_price":1,"Goods_name":1,"goods_id":1,"cat_id":1})Items with a price below or
. Db.runcommand ({getlasterror:1})--The number of documents that are queried for updates.Findandmodify--Returns the modified data for redefinition.Db.runcommand ({"Findandmodify": "Center", "query": {"status": "Ready"}, "Update": {"$set": {"status": "Running"}}) Inquire:Find empty Query document ({}): matches the entire contents of the collection. Without specifying a query condition, the default is {}. Specify the key that needs to be returned: The second parameter of Find or findone specifies
all students whose name is John Doe Db.student.find ({"Name": "John Doe"});
Equals (! =)
$ne
Find all students whose name is John Doedb.student.find({"name":{$ne:"李四"}});
Greater than (>)
$gt
Find all students older than 5db.student.find({"age":{$gt:5}});
Greater Than (
$lt
Find students of all ages less than 15db.student.find({"age":{$lt:15}});
Greater than or equal to (>=)
$gte
Find all student
', 'figcaption'],Len = element. length;While (len --){Document. createElement (element [I])}})();
This is just a simple creation of several typical html5 tags, so that they can become tags in IE6 \ 7 \ 8.
Someone has already written a complete js file, and you only need to introduce it as follows:
《script》 There are also writing
《script》 The difference between html5shiv and html5shim is only "m" and "v". There is no other difference! Of course this is not what I said. The only difference is
introduce how to use it. Reference:
Here is the normal HTML code
Here xxx is some specific things, in this list a few out, detailed introduction of their respective meanings:
......The above is a few commonly used to judge the version of IE browser syntax, the following to introduce a relatively less useful logic to determine the parameters:There are several parameters: LTE,LT,GTE,GT and!The respective detailed explanations are as fol
There is only one sentence in a page that can be judgedWe often see the form in the HTML of the page like [if LTE IE 9] ... The code for [ENDIF] represents a statement that restricts certain browser versions to execute, so what are the rules for these judgment statements? Please see below:
Project
Example
Description
!
[If! IE]
The NOT operator. This was placed immediately in front of the feature, operat
start time of the event corresponding to each vertex. exceeding this time will delay the entire construction period.
3. the earliest start time of the activity, ete (earliest time of edge), is the earliest occurrence time of the arc AK.
4. The latest start time of the activity, LTE (latest time of edge): The latest occurrence time of the arc AK, that is, the latest start time without delay.
We first obtain 1 and 2, and ete originally represents the
This responsive layout is implemented through the CSS3 Media query feature, which matches different styles depending on the resolution. IE8 Browser does not support this excellent CSS3 feature,Bootstrap wrote in the development document how to use the compatible IE8, if you want to be compatible with IE6,IE7, you can search Bsie (BOOTSTRAP2). Http://v2.bootcss.com1, note that using Bootstrap is best used with jquery below 2.0;2,IE8 below does not support placeholderScripttype= "Text/javascript"s
need to know the value of the n_ho_rb and function f_hop , depending on the formula. However, since the second time slot does not take the image of the PRB location has been determined, we can use this to reverse the introduction of N_HO_RB and f_hop values, and then you can calculate the second time slot in the mirror mode after the PRB location. Here is the calculation process:(Figure 9) from the above results, you can see that after the predefined frequency hopping pattern and image pattern
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