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How do I find duplicate values in a table in Oracle?
...over 8 year later, still works well for both latest versions of Oracle and MySQL (remove space after count function in having line).
– PhatHV
Apr 19 '16 at 2:34
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grep exclude multiple strings
...s particulary usefull when you have a long list of things to exclude.
vi /root/scripts/exclude_list.txt
Now add what you would like to exclude
Nopaging the limit is
keyword to remove is
Now use grep to remove lines from your file log file and view information not excluded.
grep -v -f /root/sc...
How can I get column names from a table in Oracle?
... this question works better as a general one. (I came here looking for the mySQL one.)
– icedwater
Feb 17 '14 at 6:02
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How to convert strings into integers in Python?
I have a tuple of tuples from a MySQL query like this:
15 Answers
15
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Error - trustAnchors parameter must be non-empty
... by itself can be used as a workaround, as well.
# 0. First make yourself root with 'sudo bash'.
# 1. Save an empty JKS file with the default 'changeit' password for Java cacerts.
# Use 'printf' instead of 'echo' for Dockerfile RUN compatibility.
/usr/bin/printf '\xfe\xed\xfe\xed\x00\x00\x00\x0...
How to get RelativeLayout working with merge and include?
... that id, visibility and layout_* tags overriding are not applied when the root element is a merge tag, unfortunately. As you can't have a View as the xml root, we must have an extra ViewGroup there...
– Rafael Nobre
Jul 24 '13 at 13:20
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Is mongodb running?
...r
service mongod status
to see if mongod is running (you need to be root to do this, or prefix everything with sudo). Please note that the 'grep' command will always also show up as a separate process.
check the log file /var/log/mongo/mongo.log to see if there are any problems reported
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How to get record created today by rails activerecord?
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MySQL:
Model.all :condition => ["DATE(created_at) = ?", Date.today] # rails 2
Model.where("DATE(created_at) = ?", Date.today) # rails 3
PostgreSQL:
Model.all :condition => ["created_at::date = ?", Date.today] # rail...
服务器保持大量TIME_WAIT和CLOSE_WAIT的解决方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...eb服务器也是会出现大量的TIME_WAIT的情况的。
现在来说如何来解决这个问题，解决思路很简单，就是让服务器能够快速回收和重用那些TIME_WAIT的资源。
下面来看一下我们网管对/etc/sysctl.conf文件的修改：
#对于一个新建连...
Oracle query to fetch column names
I have a mySQL query to get columns from a table like this:
12 Answers
12
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