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PostgreSQL LIKE query performance variations
...large variation in response times regarding LIKE queries to a particular table in my database. Sometimes I will get results within 200-400 ms (very acceptable) but other times it might take as much as 30 seconds to return results.
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Adding parameter to ng-click function inside ng-repeat doesn't seem to work
...g custom html and compile it using angular in the controller.
var tableContent= '<div>Search: <input ng-model="searchText"></div>'
+'<div class="table-heading">'
+ '<div class="table-col">Customer ID&l...
Should MySQL have its timezone set to UTC?
...`timestamp_field`, @@session.time_zone, '+00:00') AS `utc_datetime`
FROM `table_name`
You can also set the sever or global or current session timezone to UTC and then select the timestamp like so:
SELECT `timestamp_field` FROM `table_name`
To select the current datetime in UTC:
SELECT UTC_TIM...
Length of a JavaScript object
... implemented method, but you can check which browser supports it with this table.
– aeosynth
Jun 6 '11 at 19:08
51
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How to specify table's height such that a vertical scroll bar appears?
I have a table with many rows on my page. I would like to set table's height, say for 500px, such that if the height of the table is bigger than that, a vertical scroll bar will appear. I tried to use CSS height attribute on the table , but it doesn't work.
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Use email address as primary key?
...ies with multiple joins.
If you store information about users in multiple tables, the foreign keys to the users table will be the e-mail address. That means that you store the e-mail address multiple times.
share
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How to get cumulative sum
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@Franklin Only cost efficient for small tables. Cost grows proportional to the square of the number of rows. SQL Server 2012 allows this to be done much more efficiently.
– Martin Smith
May 18 '13 at 19:57
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How to update Identity Column in SQL Server?
...because it started
with a big number 10010 and it's related with another table, now I have 200 records and I want to fix this issue before the records increases.
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How does collections.defaultdict work?
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Neither. 0 is immutable - in CPython all values from -5 to 256 are cached singletons but this is implementation-specific behaviour - in both cases a new instance is "created" each time with int() or list(). That way, d[k].append(v) can work wi...
Why is the tag deprecated in HTML?
...nvas. It is only deprecated because of the war against marquees, centers, tables, frame which is purely religious, as they all have a place.
– Dmitry
Jun 5 '16 at 18:23
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