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Import CSV to SQLite
...sqlite> create table foo(a, b);
sqlite> .mode csv
sqlite> .import test.csv foo
The first command creates the column names for the table. However, if you want the column names inherited from the csv file, you might just ignore the first line.
...
Should I use #define, enum or const?
...e a mask to select records in certain states. Create an inline function to test if the value of the type is valid for your purpose; as a state marker vs a state mask. This will catch bugs as the typedef is just an int and a value such as 0xDEADBEEF may be in your variable through uninitialised or mi...
Dynamic type languages versus static type languages
... production system. Dynamically typed languages tend to require more unit testing, which is tedious at the best of times. Also, statically typed languages can have certain features which are either impossible or unsafe in dynamic type systems (implicit conversions spring to mind). It's all a ques...
Check if a value exists in pandas dataframe index
...d with column headings rather than an index, e.g.: df = pandas.DataFrame({'test':[1,2,3,4]}, columns=['a','b','c','d'])
– Tahlor
Jun 22 '18 at 14:54
...
How to make a HTTP request using Ruby on Rails?
...afely parameters in the URL? Eg: http ://www.example.com/index.html?param1=test1&param2=test2. Then I need to read from the other website parameters and prepare the responce. But how can I read parameters?
– user502052
Jan 3 '11 at 0:01
...
How can I autoformat/indent C code in vim?
... like.
Here's a demo. Before astyle:
int main(){if(x<2){x=3;}}
float test()
{
if(x<2)
x=3;
}
After astyle (gggqG):
int main()
{
if (x < 2)
{
x = 3;
}
}
float test()
{
if (x < 2)
x = 3;
}
Hope that helps.
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Does .asSet(…) exist in any API?
... this, the most common reason to construct a Set (or List) by hand is in a test class where you are passing in test values.
– Scott McIntyre
May 20 '16 at 14:17
add a comment
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Getting RAW Soap Data from a Web Reference Client running in ASP.net
...e();
sr.Dispose();
File.WriteAllText(@"C:\test.txt", response);
byte[] ResponseBytes = Encoding.ASCII.GetBytes(response);
MemoryStream ms = new MemoryStream(ResponseBytes);
return ms;
}
else
...
Get names of all keys in the collection
...ach(function(doc){Object.keys(doc).forEach(function(key){ if (/YOURREGEXP/.test(key)) {allKeys[key]=1}})});
– Li Chunlin
Mar 27 '17 at 4:22
...
ALTER TABLE to add a composite primary key
...er table parent drop column id;
ERROR 1025 (HY000): Error on rename of
'./test/#sql-a04_b' to './test/parent' (errno: 150).
If you want to drop a primary key that's being referenced by another table, you will have to drop the foreign key in that other table first. You can recreate that foreign k...