Posts

Duplicate entry error in MySQL/Hibernate -

I am facing the following problem and can not find the appropriate solution I have property ID, x (foreign key) There is a relation with y (sequence number) and z (content). Apart from this, there is a specific disturbance on x-yy. I usually have tuples (455, 159, 1, ...), (456, 159, 2, ...), (457, 15 9, 3, ...) etc. I am using hibernate and it is a mapping table for a certain class. Now I have a case of use, where I want to insert a new object, or remove an already existing one and update the sequence number of other objects. For example, if I insert a new object after 1, then it should get the sequence number 2 and later the object that is 2 be 3, 3 should be 4, etc. Something like this should be done while removing the object - it should be the old 3 and 2, etc. However, once an update has started I get a restriction violation. Critical: The session could not synchronize the database state with org.hibernate.exception.ConstraintViolationException: java.sql.BatchUpdateExcept...

asp.net - How do I dynamically change color in C# to a hex value? -

मुझे पता है कि एक # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # LightSteelBlue; (System.Drawing;) का प्रयोग करें लेकिन मैं एक हेक्स मूल्य को एक सिस्टम.रॉल में कैसे रूपांतरित कर सकता हूँ, यानी Label1.BackColor = "# B5C7DE मैं रंग अनुवादक का उपयोग इस प्रकार करेगा: var color = ColorTranslator.FromHtml ("# FF1133"); आशा है कि यह मदद करता है।

php c++ communication -

Hi I am new to php, I have created the whole code in c ++ and want to use this code in php . Dll to use it in your code But I'm not able to use this dll in php, I can send any complete code to use php, c ++ extensions. There is a whole section about some PHP Internal and how to write / write a PHP extension in the online manual , And I especially want to point to it because it helps you set up a new "blank" extension project. And there are many tools that help you wrap existing libraries in extensions for many languages, including PHP.

html - Pre-Loading Images -

क्या html / css का उपयोग करने से पूर्व लोड छवियों का कोई तरीका है? जी हाँ आप कर सकते हैं इस विषय पर कई ट्यूटोरियल उपलब्ध हैं -।

ruby on rails - What should I ask the previous development team during my only (1-3hr) meeting? -

Ruby on rail (1.8, 2.3.2) project. The first version of the project was created by some organizations. I will apply the next versions of this project without any help of this organization. During the meeting (1-3 hours) the previous development team will be able to talk with the developers. Project Statistics: ~ 10k LOC, 1.0 / 0.6 Code Test Ratio, RSPC What questions about the project can you recommend? Review the entire project first and understand it If you For an architecture Why did he make the decision of any other architecture another? A complete list of dependencies ( If you are not able to understand it myself) What are the biggest problems? Which parts of the projects are always / ever fixed? The project What is the Achilles heel? What will be the biggest headache What are the security problems there and what is bound to decide What will you do If you were me What you should know that you did not ask (most important question) Also, do not...

scripting - Forfiles Batch Script (Escaping @ character) -

I am working on a batch script which will allow me to delete the files files. For now, I aim to print files that will be destroyed. The call to the phophilus I am using the work without opening the CMD.xa, but as soon as I embed it into a batch script, I suspect that it is due to the @ character Not running properly, but I'm not sure. I am running: forfiles / s / P "r: \" / m * .bak / d-10 / c "cmd / c apo @ path " And this results in the following error: error: invalid argument / option - '@ pat' type" FORFILES /? " I have made the goal in place and have tried a few different plans to avoid the @ PATH component. From @@ PATH \ "@ PATH \" Because of no results Any help would be appreciated! Edit: I should also note that I am building a lot of firefalls from myself I had the same problem as long as I did not remove quotation marks around the directory path, like: forfiles / s >

oracle - IndexOf Feature in Pl/SQL -

मैं एक varchar variable में विशिष्ट वर्ण का स्थान देखना चाहता हूं। आप का उपयोग कर सकते हैं