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HTML table td meaning
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How can I exclude all “permission denied” messages from “find”?
...on denied' >&3; } 3>&2 2>&1
In short: Custom file descriptor 3 is used to temporarily swap stdout (1) and stderr (2), so that error messages alone can be piped to grep via stdout.
Without these redirections, both data (file paths) and error messages would be piped to grep via...
In Visual Studio C++, what are the memory allocation representations?
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Python Infinity - Any caveats?
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Delete files or folder recursively on Windows CMD
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You can use this in the bat script:
rd /s /q "c:\folder a"
Now, just change c:\folder a to your folder's location. Quotation is only needed when your folder name contains spaces.
...
Permission denied for relation
...swer to PostgreSQL Permissions for Web App for more details and a reusable script.
Ref:
GRANT
ALTER DEFAULT PRIVILEGES
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What's the difference between :: (double colon) and -> (arrow) in PHP?
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How can I launch Safari from an iPhone app?
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When to use Preorder, Postorder, and Inorder Binary Search Tree Traversal strategies
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Remove Trailing Spaces and Update in Columns in SQL Server
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Well here is a nice script to TRIM all varchar columns on a table dynamically:
--Just change table name
declare @MyTable varchar(100)
set @MyTable = 'MyTable'
--temp table to get column names and a row id
select column_name, ROW_NUMBER() OVER(...