I used .NET to parse an XML file of about 20 million rows (1.56 GB), build a LINQ object from the data, and then insert it into a SQL database. This took a long time Time.
In order to improve
Tag: data
data-dojo-mixins
Let each Widget have a plug-in mechanism: new data-dojo-mixins attribute The plug-in mechanism is a best practice for building flexible and extensible applications, and now Dojo fully implements t
12 Spring Data JPA: SpringDataJPA operation principle and basic operations (below)
spring data jpa
day1: Orm thought, hibernate and jpa overview and jpa basic operation
day2: springdatajpa operation principle
day2: basic operation of springdatajpa
day3: multi-ta
12 Spring Data JPA: OLM Thought and Hibernate and JPA Overview and JPA Basic Operation
spring data jpa
day1: an overview of orm thinking, hibernate, and jpa and basic operations of jpa
day2: springdata jpa’s operating principles and basic operations< br> day3: Multi-table operation
1. Big Data Cluster Environment Preparation
1. Three virtual machines turn off the firewall Execute the following commands on three machines (executed by the root user)
service iptables stop
chkconfig iptables off
vim /etc/
.NET – Update data without retrieving
Can NHibernate update some (but not all) fields in a table row without retrieving any data?
I know the identity of the entity. You can find all the examples here: http://nhibernate.info/doc/nh
Apple-Watch – Update Watchos2 Clockkit Complex Functions Using iOS Data
I’m trying to update the watchOS2 clockkit complication with the data transmitted by WatchConnectivity from IOS/iPhone.
Despite quite a lot of research, but It has not been successful so far.
Database – Preventing errors from input
Is it a good practice to fully delegate data validation to database engine constraints?
Validating data from an application does not prevent invalid insertion from another software (maybe wri
What may be caused when the pressure test data cannot be pressed?
1. Network bandwidth
In a stress test, sometimes it is necessary to simulate a large number of user requests. If the data packet transmitted per unit time is too large and exceeds the transmi
Algorithm – Quick filtering data structure (DELPHI)?
I am optimizing a part of a Delphi application, where the list of objects is often filtered using different criteria. The objects are stored in the TObjectList structure, and each filter is usually