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“Large data” work flows using pandas
...l of the fields in each file?
Do you ever select subsets of rows (records) based on criteria (e.g. select the rows with field A > 5)? and then do something, or do you just select fields A, B, C with all of the records (and then do something)?
Do you 'work on' all of your columns (in groups), or a...
PreparedStatement IN clause alternatives?
...g any(String sql, final int params) {
// Create a comma-delimited list based on the number of parameters.
final StringBuilder sb = new StringBuilder(
new String(new char[params]).replace("\0", "?,")
);
// Remove trailing comma.
sb.setLength(Math.max(sb.length() - 1, ...
Difference between class and type
...ere type erasure is not in effect,
like when traversing parameter types or base types.
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Is is possible to check if an object is already attached to a data context in Entity Framework?
...ties refer to the same entity. I haven't figure out how to only attach the base entity, so I had to redesign the project a bit, to use separate contexts for each "business transaction", like it was designed for. I'll note this for future projects.
– Aske B.
Jan...
How does the main() method work in C?
...ents.
The leftmost arguments are closer to the top of the stack, or to the base of the stack frame, so that spurious arguments do not invalidate the addressing.
One set of calling conventions which obeys these rules is stack-based parameter passing whereby the caller pops the arguments, and they a...
How to return an array from JNI to Java?
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Based on the asked question, this is already explained in the first answer that how can we pass int[] via jobjectArray. But Here is an example how we can return a jobjectArray which contains lists of data. This can be helpful...
Is the size of C “int” 2 bytes or 4 bytes?
...ote that the standard encourages us to consider choosing our integer types based on range rather than size, but for now let's ignore the standard practice, and let our curiosity explore sizeof, bytes and CHAR_BIT, and integer representation... let's burrow down the rabbit hole and see it for ourselv...
Bootstrap 3 offset on right not left
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I modified Bootstrap SASS (v3.3.5) based on Rukshan's answer
Add this in the end of the calc-grid-column mixin in mixins/_grid-framework.scss, right below the $type == offset if condition.
@if ($type == offset-right) {
.col-#{$class}-offset-right-#{$in...
How do I disable the security certificate check in Python requests
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Based on CURL_CA_BUNDLE, os.environ['REQUESTS_CA_BUNDLE'] = 'FiddlerRootCertificate_Base64_Encoded_X.509.cer.pem' # your-ca.pem works for Python 3.8.3 when using google-cloud-bigquery 1.24.0 and BigQuery Client Lib for Pytho...
Difference between a theta join, equijoin and natural join
...ers to an arbitrary condition used as the criterion for the join. (see Database Systems: The Complete Book by Garcia-Molina, Ullman, Widom, chapter 2, Theta Join)
– Ram Rajamony
Feb 4 '17 at 21:14
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