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- python - seek() function? - Stack Overflow
A seek() operation moves that pointer to some other part of the file so you can read or write at that place So, if you want to read the whole file but skip the first 20 bytes, open the file, seek(20) to move to where you want to start reading, then continue with reading the file
- How does Pythons seek function work? - Stack Overflow
file seek(offset[, whence]) Set the file’s current position, like stdio‘s fseek() 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)
- SQL Server Plans : difference between Index Scan Index Seek
Index Seek When SQL Server does a seek it knows where in the index that the data is going to be, so it loads up the index from disk, goes directly to the part of the index that it needs and reads to where the data that it needs ends
- 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
- What is the difference between Lookup, Scan and Seek?
Every individual seek, scan, lookup, or update on the specified index by one query execution is counted as a use of that index and increments the corresponding counter in this view Information is reported both for operations caused by user-submitted queries, and for operations caused by internally generated queries, such as scans for gathering
- Why is the beginning of a C file stream called `SEEK_SET`?
If whence is set to SEEK_SET, SEEK_CUR, or SEEK_END, the offset is relative to the start of the file, the current position indicator, or end-of-file, respectively From the manpage of lseek: SEEK_SET The file offset is set to offset bytes SEEK_CUR The file offset is set to its current location plus offset bytes
- How to improve performance on a clustered index seek
A clustered index range seek that returns 138 rows is not your problem Technically you can improve the seek performance by making the clustered index narrower: evict all varlenght into a separate allocation unit by setting 'large value types out of row' to 1 and recreating the table from scratch) enable page compression (SQL 2008 EE only)
- How to seek in FFmpeg C C++ - Stack Overflow
LastFrameOk: %d\n",(int)frame,LastLastFrameTime,LastFrameTime,LastLastFrameNumber,LastFrameNumber,(int)LastFrameOk); Seek if: - we don't know where we are (Ok=false) - we know where we are but: - the desired frame is after the last decoded frame (this could be optimized: if the distance is small, calling decodeSeekFrame may be
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