WebAug 23, 2024 · 3. If there are zero transactions locking the table schema, the TRUNCATE TABLE command will finish near-instantaneously. The most i have waited so far was 0.1 seconds for truncating a 25GB table. In any case, a TRUNCATE TABLE command does not have undesirable side-effects on anything but other maintenance operations. WebFeb 9, 2024 · Compatibility. The SQL:2008 standard includes a TRUNCATE command with the syntax TRUNCATE TABLE tablename.The clauses CONTINUE IDENTITY/RESTART IDENTITY also appear in that standard, but have slightly different though related meanings. Some of the concurrency behavior of this command is left implementation-defined by the …
performance - Oracle truncate table takes to long for 300 million row ta…
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WebJun 19, 2024 · You then truncate the file descriptor and fclose the file handle, flushing the string, hence it shows up in the file. Solution 3: POSIX requires you to take specific actions (which ensure that no ugly side Effects of Buffering make your program go haywire) when switching between using a FILE stream and a file descriptor to access the same open file. WebMar 17, 2015 · 2 Answers. Sorted by: 4. Locks on the table or on data dictionary resources used by the 'truncate table' command could cause this. The system could possibly be waiting around for a resource to be released before it can do the truncate. Check whether the session is blocked waiting for a lock to be released. Take a look at the queries … WebJun 4, 2003 · 409. With the figures you have given about your tables, my guess is it would take you around 2 hours. Apart from cleaning up your tablespace, system tablespace would also undergo corresponding amount of cleanup time. With around 2000 objects, it takes me almost 10 minutes. Maybe someone else will share their timings. population of rikers island