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How to join multiple lines of file names into one with custom delimiter?
... i just upvoted it, this is and now it has the same votes as the selected answer. THIS IS THE ANSWER. no trailing delimeter
– thebugfinder
Sep 14 '15 at 13:23
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MySQL - UPDATE multiple rows with different values in one query
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UPDATE Table1 SET col1= col2 FROM (SELECT col2, col3 FROM Table2) as newTbl WHERE col4= col3
Here col4 & col1 are in Table1. col2 & col3 are in Table2 I Am trying to update each col1 where col4 = col3 different value for each row
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How do I create a unique constraint that also allows nulls?
...dy found separately in other, properly defined columns. It should never be selected or used.
So, my story is that this is not a surrogate NULL, and I'm sticking to it! Since we don't actually want the non-NULL value for any purpose other than to trick the UNIQUE index to ignore NULLs, our use case ...
How can I list all collections in the MongoDB shell?
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> show collections
will list all the collections in the currently selected DB, as stated in the command line help (help).
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JPA getSingleResult() or null
...the query did not match any row or whether the query matched a row but the selected column contains null as its value. from: stackoverflow.com/a/12155901/1242321
– user1242321
Mar 16 '16 at 1:36
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PDOException “could not find driver”
...your server.
In Ubuntu/Debian you check for the package with:
dpkg --get-selections | grep php | grep mysql
Install the php5-mysql package if you do not have it.
In Ubuntu/Debian you can use:
PHP5: sudo apt-get install php5-mysql
PHP7: sudo apt-get install php7.0-mysql
Lastly, to get it wo...
Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server
... add new privilege from phpmyadmin
Goto Privileges > Add a new User
Select Any Host for the desired username
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Is background-color:none valid CSS?
...or none is not a background-color value : none
transparent may have been selected as better term instead of 0 or none values during the development of specification of CSS.
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How to change indentation mode in Atom?
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OS X:
Go to Atom -> prefrences or CMD + ,
Scroll down and select "Tab Length" that you prefer.
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How to change the order of DataFrame columns?
...mean(1))
http://pandas.pydata.org/pandas-docs/stable/dsintro.html#column-selection-addition-deletion
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