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How to unit test an object with database queries

I've heard that unit testing is "totally awesome", "really cool" and "all manner of good things" but 70% or more of my files involve database access (some read and some write) and I'm not sure how to write a unit test for these files. ...
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PHP code to convert a MySQL query to CSV [closed]

... SELECT * INTO OUTFILE "c:/mydata.csv" FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"' LINES TERMINATED BY "\n" FROM my_table; (the documentation for this is here: http://dev.mysql.com/doc/refman/5.0/en/select.html) or: $select = "SELECT * FROM table_name"; $export = mysql_query ( $sel...
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What is INSTALL_PARSE_FAILED_NO_CERTIFICATES error?

I was trying to change my default/main/startup (whatever you call it) activity by editing the androidmanifest.xml file. All i did was change the android:name property. however, this completely broke the entire app. when I try to install it fails and reads. ...
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How can I get Eclipse to show .* files?

... I'm using 64 bit Eclipse for PHP Devleopers Version: Helios Service Release 2 It cam with RSE.. None of the above solutions worked for me... What I did was similar to scubabble's answer, but after clicking the down arrow (view menu) in the top of the RSE package explorer I had to mo...
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C++ Dynamic Shared Library on Linux

...were for a plugin system, you would use MyClass as a base class and define all the required functions virtual. The plugin author would then derive from MyClass, override the virtuals and implement create_object and destroy_object. Your main application would not need to be changed in any way. ...
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Force to open “Save As…” popup open at text link click for PDF in HTML

... the time of this comment, I've tested it on Chrome, Opera, Edge, Mozilla. All latest. Is working on all except on Mozilla. – S.I. Sep 29 '17 at 5:07 7 ...
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Maximum number of records in a MySQL database table

... The poster is not asking about numeric or any other data types. . I really do not understand how this can be flagged as a correct answer. Though I must admit that the question is ambiguous we should distinguish between PK data type and maximum number of rows for a table. –...
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Why compile Python code?

...ou invoke with python main.py is recompiled every time you run the script. All imported scripts will be compiled and stored on the disk. Important addition by Ben Blank: It's worth noting that while running a compiled script has a faster startup time (as it doesn't need to be compiled), i...
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How to solve Operator '!=' cannot be applied to operands of type 'T' and 'T' [duplicate]

... public class Test<T> { public T Value { get => _Value; set { // operator== is undefined for generic T; EqualityComparer solves this if (!EqualityComparer<T>.Default.Equals(_Value, value)) { _Valu...
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How to replace NaN values by Zeroes in a column of a Pandas Dataframe?

...olumn, select just that column. in this case I'm using inplace=True to actually change the contents of df. In [12]: df[1].fillna(0, inplace=True) Out[12]: 0 0.000000 1 0.570994 2 0.000000 3 -0.229738 4 0.000000 Name: 1 In [13]: df Out[13]: 0 1 0 NaN 0.0000...