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SQL injection that gets around mysql_real_escape_string()
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Consider the following query:
$iId = mysql_real_escape_string("1 OR 1=1");
$sSql = "SELECT * FROM table WHERE id = $iId";
mysql_real_escape_string() will not protect you against this.
The fact that you use single quotes (' ') around your variables inside your query is what protects...
How to determine the number of days in a month in SQL Server?
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116
You can use the following with the first day of the specified month:
datediff(day, @date, dat...
How can I verify if one list is a subset of another?
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15 Answers
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Remove duplicated rows using dplyr
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139
Note: dplyr now contains the distinct function for this purpose.
Original answer below:
li...
How to find gaps in sequential numbering in mysql?
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11 Answers
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append to url and refresh page
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166
this should work (not tested!)
var url = window.location.href;
if (url.indexOf('?') > ...
Sorting list based on values from another list?
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15 Answers
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Compare two data.frames to find the rows in data.frame 1 that are not present in data.frame 2
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13 Answers
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Why is January month 0 in Java Calendar?
In java.util.Calendar , January is defined as month 0, not month 1. Is there any specific reason to that ?
16 Answers
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Convert columns to string in Pandas
...will convert keys to valid json (and therefore your keys to strings):
In [11]: df = pd.DataFrame([['A', 2], ['A', 4], ['B', 6]])
In [12]: df.to_json()
Out[12]: '{"0":{"0":"A","1":"A","2":"B"},"1":{"0":2,"1":4,"2":6}}'
In [13]: df[0].to_json()
Out[13]: '{"0":"A","1":"A","2":"B"}'
Note: you can p...