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c - What do \t and \b do? - Stack Overflow The behaviour shouldn't be that terminal specific as \b and \t are abstractions of terminal behaviour that might need to be translated by the C environment to a terminal specific codes Granted, in practice they will almost always be mapped directly on the the corresponding BS and TAB ASCII codes
c++ - . c vs . cc vs. . cpp vs . hpp vs . h vs . cxx - Stack Overflow Those extensions aren't really new; they are old :-) When C++ was new, some people wanted to have a c++ extension for the source files, but that didn't work on most file systems So they tried something close to that, like cxx, or cpp instead Others thought about the language name, and "incrementing" c to get cc or even C in some cases
How are \r \t and \n different from one another? [duplicate] The \t symbol means add a tab (which is usually 4 spaces but can easily be 2 or 8 depending on the context) The \r symbol is no more used that often It means carriage return which means go to the start of the line It was used together with \n for being sure even "old" printers would get to the beginning of the next line
sql - DISTINCT for only one column - Stack Overflow Do you really want a query that returns an arbitrary row for each e-mail This really smells like you might need to re-think the problem you are trying to solve Almost every time I've been asked this question (and it comes up a lot) it turns out the developer hasn't thought through the consequences in the app for this behavior –
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sql - Inserting data into a temporary table - Stack Overflow I have provided two approaches to solve the same issue, Solution 1: This approach includes 2 steps, first create a temporary table with specified data type, next insert the value from the existing data table
How can I select the first day of a month in SQL? I used GETDATE() as a date to work with, you can replace it with the date which you need Here's how this works: First we format the date in YYYYMMDD format truncating to keep just the 6 leftmost characters in order to keep just the YYYYMM portion, and then append '01' as the month - and voila! you have the first day of the current month
sql - Insert into . . . values ( SELECT . . . FROM . . . - Stack Overflow SQL Server and Oracle require explicit column lists if SELECT The columns don’t match INSERT columns Oracle may need INSERT ALL for multiple-row inserts DB2 supports this format but may need tweaks based on the query optimizer