In XSD, I have an element x with value (a,b)
There is another element y
Yes There is no way to use XSD, so that I can make y mandatory when the value of x is b, and optional if the valu
Tag: us
MultiLink solutions cannot be used under Win10
When Multilink is used for the first time under Win10, it may appear that the debugger cannot be found during Debug, and the PE software Firmware Update Utility cannot find the debugger. At this ti
Internet-Explorer – We have tried IE font issues and solutions
I know this is a common problem, I have tried almost all the solutions I can find, I want to know if it would be more useful to show some code.
Problem
I am trying to implement 4 fonts
Why do we need Silverlight 2
Everyone is looking forward to it, Microsoft’s new generation of Web Application development platform: Silverlight 2.0 has finally entered RTWphase (Release To Web), which is the official version r
Summary of using KSOAP2 in WebService
The company’s server-side development is also drunk. The last project used webservice, and this project uses webservice again. Oh my god, I don’t know how to use HTTP. Okay, because I have a very b
Macos – Io.Open – Lua cannot be used in the main catalog
I am writing a Mac OS program, and I have the following lines:
os.execute(“cd ~/ testdir”)
configfile = io.open(“configfile.cfg”, “w”)
configfile:write(“hello”)
configfile:close()
C # Read and write files When the file is used by another process, so the process cannot access the file.
Now you need to read the log file and display it in the log query, and you need to use the IO stream.
1,
FileStream fs = File.OpenRead(url);
StreamReader sr = new StreamReader((System.
Amazon-Web-Services – What happens when we promote a read-only copy to separate the RDS instance?
I tried to promote the read replica to a separate RDS instance. It took nearly 10 minutes during this period. As far as I know, it should break the replication process and synchronize the time lag.
Why do we use NOSQL?
Knowing some of the advantages provided by NoSQL (scalability, usability, etc.), I still don’t know why a website wants to use a non-relational database.
Can I get some help, is it best to use an
Database – When do we need to return a value from a trigger program?
The documentation on the trigger procedure (https://www.postgresql.org/docs/9.6/static/plpgsql-trigger.html) says: “The trigger function must return NULL or Record/row”.
example
CREATE