For a table I\'m creating that include IP ranges, I need to store two 128-bit (16-byte) int values in a MySQL record.Since MySQL only supports up to 8-byte ints, I\'ve found that I need to use a binar
I have to maintain history and so I am using is_deleted column which can have \'Y\' or \'N\'. But for any instance of is_deleted \'N\' I should have uniwue entry for (a,b,c)开发者_开发百科 composite c
I\'m creating UILabels dynamically in a for each loop. Every loop that is run creates 1-4 UILabels. What I want is that I put these UILabels into my NSMutableArray and being able later to easy retrie
I would need to find a certain image in a div and show it. But the the thing is that I click on a different image. Here\'s the code:
My db schema consists of the following two tables: CREATE TABLE `categories` ( `id` bigint(20) NOT NULL auto_increment,
ActionKeyname TypeUniquePackedColumnCardinality CollationNullComment EditDropPRIMARY BTREEYes NoTickerID23200A
This question already has answers here: MySQL not using indexes with WHERE IN clause? (5 answers) Closed 8 years ago.
I am using the asp.net DataPager and noticed that search engines wouldn\'t be able to crawl the links created, so I added a querystring parameter and now see that it could crawl the links.
How can you determine if the performance gained on a SELECT by indexing a column will outweigh the p开发者_JAVA百科erformance loss on an INSERT in the same table? Is there a \"tipping-point\" in the s
Got a folder at http://myserver/folder/, I have disabled directory browsing for that folder. But I want to enable directory browsing for the subfolders o开发者_JAVA技巧f http://myserver/folder/
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