Mureinik questions

Mureinik answers

• Gitignore all obj directories except .m and .h files inside them
• Access to shadowed variable in local class
• Formatting dates in PostgreSQL
• Error when I try to create ordered SQL table
• Returning rows where the WHERE clause was not an exact match
• SQL Getting count of distinct rows for each value
• Mockito.doThrow with custom stacktrace
• In a tree, can a child have multiple parents?
• max() not returning the correct maximum number
• Removing duplicates in an SQL database on a condition