Seek And Go

In recent times, seek and go has become increasingly relevant in various contexts. python - seek () function? The seek position is a byte index into the contents of the file similar to an array index. Its also interesting that if we open file in append mode 'a', we cannot seek to file's beginning. From another angle, how does Python's seek function work? In relation to this, the whence argument is optional and defaults to os.SEEK_SET or 0 (absolute file positioning); other values are os.SEEK_CUR or 1 (seek relative to the current position) and os.SEEK_END or 2 (seek relative to the file’s end).

Say you would want to go 10 bytes back relative to your position: SQL Server Plans : difference between Index Scan / Index Seek. In a SQL Server Execution plan what is the difference between an Index Scan and an Index Seek I'm on SQL Server 2005. How to .seek () to the end of a text file - Stack Overflow. f.seek(0) contents = f.read() What happens here is that the pointer starts at the beginning of the file when you enter the with block, then the code will read the file all the way to the end, which is where the pointer remains until you exit the with block (or change it's position with .seek()).

c++ - fstream seekg (), seekp (), and write () - Stack Overflow. What this means is that when you use a std::basic_fstream, which by default uses a std::basic_filebuf, the single file position is moved by both seekp() and seekg(); unless you use a separate variable to store one of the positions so you can then seek back to it, you cannot keep track of put and get positions independently. Building on this, how can I use seek () in a binary file? 3 seek changes the file postion but doesn't read anything. It wouldn't know in general how much to read.

After the seek you can read 1 byte. As a side note, don't open with more rights than you need - no need to create an unnecessary failure point in your code. Python file I/O file.seek () vs file.read () pointer behavior. Additionally, the difference between the two code snippets is file.seek (3,0) vs file.read (3). in both cases I verified that the file pointer is at position 3, however when I write to the file I get different results.

How to seek to a specific line in a file? 5 If your file isn't too large (too large to fit in memory, pretty slow to read/write) you can circumvent any "low level" actions like seek and just read your file completely, change what you want to change, and write everything back. javascript - seek to a point in html5 video - Stack Overflow.

Is it possible to seek to a particular point in html5 video displayed in a web page? It's important to note that, i mean ,can I input a particular time value (say 01:20:30:045 ) and have the player control (slider) move to that point and play from that point onwards? Which is better: Bookmark/Key Lookup or Index Seek. btw of course that a seek + a lookup is more expensive than just one seek, so if you can convert reduce the seek+lookup to a single seek (ie. covering index) by all means yes, is better.

My point is that is nto the look-up that is the expensive vs. a seek, but why is the QO choosing a to use a lookup (ie.