nosql query example

This article illustrates the Relations Data Association query and statistical functional usage in YII. Share to everyone for your reference, specific as follows: Associated queries, YII also supports so-called statistical queries (or aggregation queries). It refers to the retrieval of aggregated information about the associated object, such as the number of comments per post, the average level of each product, and so on. A statistical

This paper illustrates the method of optimizing the query cache of CI framework database. Share to everyone for your reference, specific as follows: A better query optimization in the CI framework is the database cache optimization 1. Turn on caching Open $db in application/config.php [' Default '] [' cache_on '] = TRUE; Open $db in application/config.php [' Default '] [' cachedir '] = './cache ';

a oaf page personalization needs:Supplier Query page, for a duty, the user can only query vendors with the vendor type of "employee" and cannot query other types of vendors. Personalization Steps:first refer to the article "Enable OAF page personalization three configurations (Profiles)" To enable personalization for oaf. when enabled, click Personalize page in t

($ my) or die (mysql_error ());$ Row = mysql_fetch_Array ($ bbbbbbbb );@ $ Sum = $ row [sum];// Echo "$ sum ";$ Sum ++;$ SQL = "update counter set sum = '$ Sum' where ip =' $ ip '";Mysql_query ($ SQL );Mysql_close ($ conn );}$ Str_count = strval ($ count );$ Str_count = Chop ($ str_count );$ Count_len = strlen ($ str_count );$ Image_count = "";If ($ count_len {For ($ j = 0; $ j {$ Image_count = $ image_count. "}}For ($ I = 0; $ I {$ Nom = substr ($ str_count, $ I, 1 );$ Image_count = $ image_co

Server is connected.===================================================Details:Da. Fill (ds, "xxx")Datagridview1.datasource = ds. Tables ("xxx")The two sentences of xxx represent the table name, this table name and the original database table name can be different.Since this is the table in the dataset result set, it is not a user-defined table name in the original database, so you can name it arbitrarily, but the two should be consistent.In general, they do not define themselves, and if there

See the link and query set. Take the POJ 1182 food chain as an example. A simple link and query set can easily create a directed Ring Based on the given relationship, and the relationship between the two becomes the distance between the two. For this question: If u and v are not in a set, this statement is legal (the last two are ignored temporarily, the same bel

DAO Layer:Offline queryPublic listReturn C.getexecutablecriteria (Hibernatesessionfactory.getsession ()). List ();}Biz Business LayerOffline queryPublic List Findbydet () {Deptdao dao=new Deptdao ();Detachedcriteria C=detachedcriteria.forclass (Emp.class, "C"). Setprojection (Projections.projectionlist (). Add (Projections.count ("Empno")). Add (Property.forname ("job")). Add (Projections.avg ("Sal"), "avg"). Add (Projections.max ("Sal")). Add (Projections.min ("Sal")). Add (Projections.grouppro

Time format for 2008-06-16 Check out the Day data: SELECT * from ' table ' WHERE date (time field) = Curdate (); Query out the Month field: SELECT * From ' table ' WHERE Month (time field) = Month (now ()); Time format is 1219876 ... Unix time, as long as the "from_unixtime ()" function is applied For example, check the month: SELECT * From ' table ' WHERE month (From_unixtime (reg_time)) = month (now ());

In general, use the MySQL in query to write this The code is as follows Copy Code SELECT *From ' Tb_require 'WHERE ' require_id 'In (23, 1024) This method is generally suitable for numeric types, and if it is a string, enclose the single quotation mark. Such as: The code is as follows Copy Code SELECT *From ' Tb_require 'WHERE ' Require_name 'In (' AAA ', ' bbbb ') When quer

Tags: rom nbsp sig case when convert nvarchar using archExample 1:Using this query, you get the value of Ifavoriteid,ifavusertype, Cuser,iarticleid,dfavoritetime five fields:SELECT Ifavoriteid,case where Ifavusertype = 0 Then ' news manager 'When ifavusertype = 1 Then ' merchant 'When ifavusertype = 2 Then ' member 'When ifavusertype = 3 Then ' unregistered 'When ifavusertype = 4 Then ' anonymous 'END as Ifavusertype, Cuser, Iarticleid,CONVERT (nvarch

Thinkphp provides a very powerful view query application function, the user can use the View query function to specify and filter the field contents of multiple data tables as needed, organize into a view model based on these data tables, then it is convenient and simple to make a multiple table joint query directly through the model. For

? Php * php: complete example of getting the website's Google prvalue * functionapp_hash_url ($ url) {$ seedMiningPageRankisAGAINSTGOOGLESTERMSOFSERVICE .; $ result0x01020345; for ($ i0; $ istrlen ($ url); $ I ++) {$ result ^ ord ($ seed {$ I % 87 }) ^ ord ($ url {$ I}); $ result ($ result23) 0x1F ? Php/* php get the complete GOOGLE prvalue example */function app_hash_url ($ url) {$ seed = "Mining PageRank

PHP-implemented registration, login, and query of user information function API example, user information api This example describes the API interface for registering, logging on to, and querying user information implemented by PHP. We will share this with you for your reference. The details are as follows: Server Client exa