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What is the difference between Python's list methods append and extend?

This question's answers are a community effort. Edit existing answers to improve this post. It is not currently accepting new answers or interactions. What's the difference between the list methods append() and extend()? append: Appends object at the end. x = [1, 2, 3] x.append([4, 5]) print(x) gives you: [1, 2, 3, [4, 5]] extend: Extends list by appending elements from the iterable. x = [1, 2, ..

Add a column with a default value to an existing table in SQL Server

How can I add a column with a default value to an existing table in SQL Server 2000 / SQL Server 2005? Syntax: ALTER TABLE {TABLENAME} ADD {COLUMNNAME} {TYPE} {NULL|NOT NULL} CONSTRAINT {CONSTRAINT_NAME} DEFAULT {DEFAULT_VALUE} WITH VALUES Example: ALTER TABLE SomeTable ADD SomeCol Bit NULL --Or NOT NULL. CONSTRAINT D_SomeTable_SomeCol --When Omitted a Default-Constraint Name is autogenerated. D..

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