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How do I use cascade delete with SQL Server?
...o perform cascading delete in SQL Server when a record from T1 is deleted, all associated records in T2 also deleted.
8 An...
postgresql list and order tables by size
How can I list all the tables of a PostgreSQL database and order them by size ?
7 Answers
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Combining two Series into a DataFrame in pandas
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this actually avoids copying too (as compared to the dict solution)
– Jeff
Aug 5 '13 at 16:27
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using data-* attribute with thymeleaf
...d of custom attributes, e.g. th:data-el_id="" becomes data-el_id="", th:ng-app="" becomes ng-app="" and so on. There is no need for the beloved data attribute dialect anymore.
This solution I prefer, if I want to use json as the value, instead of:
th:attr="data-foobar='{"foo&quot:'+${...
Building a complete online payment gateway like Paypal [closed]
...in, but by this I dont mean a local bank branch. Each major bank will generally have a separate card acquiring arm. So here in the UK we have (eg) Natwest bank, which uses Streamline (or Worldpay) as its acquiring arm. In total even though we have scores of major banks, they all end up using one of ...
sqlalchemy unique across multiple columns
... declares those in the table definition, or if using declarative as in the __table_args__:
# version1: table definition
mytable = Table('mytable', meta,
# ...
Column('customer_id', Integer, ForeignKey('customers.customer_id')),
Column('location_code', Unicode(10)),
UniqueConstraint...
Build and Version Numbering for Java Projects (ant, cvs, hudson)
...c build numbering and version number management in Java projects? Specifically:
9 Answers
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bootstrap modal removes scroll bar
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Thx. Additionally, if modal popup needs to scroll and the parent needs to remain still .modal-body { max-height: calc(100vh - 210px); overflow-y: auto; } .modal-open { overflow: hidden; overflow-y: scroll; padding-ri...
Why use a public method in an internal class?
...presents the key, documented functionality provided by this object."
Basically, my attitude is: suppose I decided to make this internal class into a public class. In order to do that, I want to change exactly one thing: the accessibility of the class. If turning an internal class into a public clas...
Regex Named Groups in Java
...> TEST
matcher.name(1) ==> login
Replace
matcher.replaceAll("aaaaa_$1_sssss_$2____") ==> aaaaa_TEST_sssss_123____
matcher.replaceAll("aaaaa_${login}_sssss_${id}____") ==> aaaaa_TEST_sssss_123____
(extract from the implementation)
public final class Pattern
implements java.io...