sparql query example

In our site design process, often use multi-conditional query, the source of this article is a second-hand housing query example. In this case, we are going to be able to find the information that we need through a number of conditions, such as location, property type, house price, housing area and information release date. The following is the implementation pro

"}}{"_ Id": ObjectId ("4dd7d214b2d55d5e1db1bb99"), "userId": "10010178", "userName": "Bill Tu8", "gender": "m8 ", "age": 8, "rank": [8, 8, 8], "interests ":{"Game": "game8", "ball": "ball8", "other": "nothing8 "}}{"_ Id": ObjectId ("4dd7d214b2d55d5e1db1bb9a"), "userId": "10010179", "userName": "Bill Tu9", "gender": "m9 ", "age": 9, "rank": [9, 9, 9], "interests ":{"Game": "game9", "ball": "ball9", "other": "nothing9 "}}{"_ Id": ObjectId ("4dd7d214b2d55d5e1db1bb9b"), "userId": "100101710", "user

This article mainly introduces the usage of the express delivery query function on the public platform. The example analyzes the skills and specific usage of the public platform for express delivery query, which is of great practical value. For more information, see This article mainly introduces the usage of the express delivery

instance array, sometimes we just want to get a single column of values, traversing the array to get the value of the specified column too troublesome, you can use the lists method to get a column value array: $users = db::table (' users ')->lists (' name ');DD ($users); So we can eliminate the hassle of traversing an array of objects. 4.5 Native expressions In addition, the Query Builder also supports native expressions, and we need to call th

Example of Oracle method to recursively query parent-child sibling nodes: oracle Recursion Preface Speaking of the recursive query syntax in Oracle, I think some of the database-based shoes should know that they should also be used for projects, this article will introduce Oracle's recursive query of parent and child n

In our site design process, often use multi-conditional query, the source of this article is a second-hand housing query example. In this case, we are going to be able to find the information that we need through a number of conditions, such as location, property type, house price, housing area and information release date. The following is the implementation pro

Example of IP address query using Web Service Instance 01 implements a simple Web Service Access This instance implements the IP address query interface service and returns the province, city, and region where the IP address is located based on the IP address input by the user. The instance will use the IP address library for information

Use the example to explain how to optimize the database query by using the prefetch_related () function in the Django framework in Python, pythondjango Instance background Assume that the Personal Information System must record the home, residence, and city of each individual in the system. The database design is as follows: The content of Models. py is as follows: from django.db import models class Provin

This article is an example of how Symfony2 uses doctrine to query database queries. Share to everyone for your reference, specific as follows: Variables used in the predefined text: $em = $this->getdoctrine ()->getentitymanager (); $repository = $em->getrepository (' acmestorebundle:product ') 1. Basic methods $repository->find ($id); $repository->findall (); $repository->findonebyna

A small example of a text query on C++prime has recently been implemented, as shown in the final section of chapter fourth, version 15. Related to polymorphic, handle class, so give the implementation of the source code, for subsequent viewing.One: System requirements:Images cannot be uploaded---to be transmittedTwo: Code(1) queryWord.h------------Queryworld is really used to achieve the data structure and

=mssql_query ("SELECT * from News ORDER BY date Desc", $db);$roro =mssql_num_rows ($query);if ($roro ==0) {echo "";Exit}Mssql_data_seek ($query, $dangqian);$i = 0;while ($arr =mssql_fetch_array ($query)) {if ($i >= $userperpage) {break;}echo " \ n "; echo " $arr [title]\ n "; $datee =date ("y-m-d", $arr [Date]); echo " $datee\ n "; echo "

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

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

Session session = This.getsession (); String hql = "from Tblfwxx FW where fw.title like?"; Query query = session.createquery (HQL); Query.setstring (0, "% brilliant Son"); Use the above. "As placeholders, and then set the values of the parameters one by one using the SetString method of query. However, this reduces the readability of the code. So try to use "

A single table query is to use the SELECT statement to query the target table, apply certain logic processing, and finally return results. This article is summarized as follows. 1. Example Query 2. logic processing sequence of select statements 3. Several pitfallsSample Query