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PDO closing connection
... to keep in mind when using persistent connections. One is that when using table locking on a persistent connection, if the script for whatever reason cannot release the lock, then subsequent scripts using the same connection will block indefinitely and may require that you either restart the httpd ...
How do I center floated elements?
...g floats is easy. Just use the style for container:
.pagination{ display: table; margin: 0 auto; }
change the margin for floating elements:
.pagination a{ margin: 0 2px; }
or
.pagination a{ margin-left: 3px; }
.pagination a.first{ margin-left: 0; }
and leave the rest as it is.
It's the be...
node.js database [closed]
... doesn't make sense to use it if your data would make more sense in an SQL table or a simple key-value store.
Think of your use case. Will you be more likely to want to do a full-text search, just get data by key, or get ranges of documents that have similar attributes?
...
Image inside div has extra space below the image
...lex; }
#wrapper { display: inline-flex; }
Using display: block, table, flex and inherit
#wrapper img { display: block; }
#wrapper img { display: table; }
#wrapper img { display: flex; }
#wrapper img { display: inherit; }
...
Using XPATH to search text containing
...se the same normalization logic on
the text of HTML Selenese test case
tables. This has a number of
advantages. First, you don't need to
look at the HTML source of the page to
figure out what your assertions should
be; " " symbols are invisible
to the end user, and so you shou...
SQL Query Where Field DOES NOT Contain $x
... what is x.b? your letters are very very confusing. I recommend using table or field.
– Whitecat
Aug 24 '15 at 21:10
...
Calculate difference between two datetimes in MySQL
..... etc. I want similar kind of functionality. For example there is one table say REQUESTS (id, message, timestamp). timestamp while storing will be NOW() . while i run a query, select * from requests, instead of displaying that value it should display id, message and how much time back request ...
What are the differences between NP, NP-Complete and NP-Hard?
...al definition. Moreover, "decidable" can also be defined in terms of "computable functions." So, the halting problem is a decision problem ("Does this program halt?" is a yes/no question) but it is undecidable; there is no effective method for determining whether or not an instance of the halting pr...
How to disable margin-collapsing?
...collapsing") entail using a 1px border or 1px padding. I find this unacceptable: the extraneous pixel complicates calculations for no good reason. Is there a more reasonable way to disable this margin-collapsing?
...
What is the difference between vmalloc and kmalloc?
...ral virtual-to-physical address mappings will have to be added to the page table. And in the worst case, there will be (size of buffer/page size) number of mappings added to the page table.
This also adds pressure on TLB (the cache entries storing recent virtual to physical address mappings) when a...