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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)
How to . seek () to the end of a text file - Stack Overflow Your parameters to seek are incorrect, seek takes 2 parameters, an offset (how many bytes) and whence which describes from where to seek (start:0, current:1, end:2) So what you need is: import io sessionRecord seek(0, io SEEK_END) Or: sessionRecord seek(0, 2) # Py2 But you can avoid doing this by opening the file in append mode:
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
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
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
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)
file - How is Average Seek Time Calculated? - Stack Overflow The (average) seek time is the time taken to switch to that position to any other position, with both (a) track and (b) sector When positioned, the read can start The disk RPM is into play for this, if it spins at 600rpm and has 100 sectors per track, it means that it seeks sectors at
How to properly use Seek in DAO database - Stack Overflow That happens because you must set the controlling index before calling Seek With rstTemp ' Store current record location theBookmark = Bookmark ' Set the index Index = "PrimaryKey" '<- use your index name here Seek "=", intSeek If you need to list the names of your table's indexes, you can examine its TableDef Indexes collection Here
Stream. Seek (0, SeekOrigin. Begin) or Position = 0 Additionally : when calling Seek(), even if no actual seek on the file system is needed (the seek position is within the buffer boundary), it will always cause data in the buffer to be copied (see Buffer InternalBlockCopy() calls) This might impact performance if you do a lot of seeks (eg: parsing a binary file)