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Removing duplicate rows from table in Oracle
...ample data, but in the process I accidentally loaded duplicate records, so now I can't create a primary key using some of the columns.
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Pandas groupby: How to get a union of strings
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It seems these operations are now vectorised removing the need for apply and lambdas. I came here wondering why pandas actually concats and not return an error on summing strings.
– NelsonGon
Sep 10 '19 at 7:42
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How to truncate a foreign key constrained table?
...ion 1:
Remove constraints
Perform TRUNCATE
Delete manually the rows that now have references to nowhere
Create constraints
Option 2: suggested by user447951 in their answer
SET FOREIGN_KEY_CHECKS = 0;
TRUNCATE table $table_name;
SET FOREIGN_KEY_CHECKS = 1;
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Laravel Check If Related Model Exists
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A Relation object passes unknown method calls through to an Eloquent query Builder, which is set up to only select the related objects. That Builder in turn passes unknown method calls through to its underlying query Builder.
This means you can use the...
Performance difference between IIf() and If
...lete.
Like in C#, VB's conditional If operator short-circuits, so you can now safely write the following, which is not possible using the IIf function:
Dim len = If(text Is Nothing, 0, text.Length)
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How to print pandas DataFrame without index
...something like:
document = df.to_dict(orient='list')
There are 6 ways by now to orient the data, check more in the panda docs which better fits you.
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Set mouse focus and move cursor to end of input using jQuery
... This works fine with FF and chrome but not in IE.. any one know how to solve this issue in IE ?
– john Smith
Sep 20 '12 at 13:35
1
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Count immediate child div elements using jQuery
...d sometime back, just wanted to share so that this could help someone from now
– manikanta
Aug 16 '11 at 20:14
Where i...
What is the correct XPath for choosing attributes that contain “foo”?
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xmlme.com now redirects to some other host and does not appear to host the tool or anything like it.
– jpmc26
Dec 6 '17 at 19:28
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What does the property “Nonatomic” mean?
...fault (which is atomic; there used to be no keyword for this, but there is now), then the @synthesized methods use an object-level lock to ensure that multiple reads/writes to a single property are serialized. As the Apple docs point out, this doesn't mean the whole object is thread-safe, but the in...