check file size online

A friend and I talked to a case, a tablespace originally had a data file (already has a lot of data entered), then he added 7 data files, this time he found that he added more files, want to delete these data files, but do not understand the

A similar warning was found while looking at a client's database recovery log (File #N is offline, but was part of a online tablespace.), not previously noticed, this time by experimenting to reproduce the contentCreate a table spacesql> Create

The size of Oracle archived logs is much smaller than that of online logs. Some users may be confused about the size of archived logs smaller than those of online logs:First, check whether your archive log files are compressed:SELECT to_char

Principles and Application of pt-online-schema-change, ptonlinechangeschema If it is reprinted, please indicate the source of the blog: www.cnblogs.com/xinysu/. The copyright belongs to xiaoradish in the blog garden. Thank you for your

Check whether there is a problem with the Oracle10GRACredo Log Size Determines whether the Oracle 10g rac redo log size is faulty. Here we will mention two possible problems. FirstBatch Processing TaskThis task may not have enough space to

Specifications/inches/cmThe data table (in inches) of the maximum number of photos that can be rinsed by a digital camera calculated based on 150ppi)5 million pixels valid 4915200, pixels 2560x1920. Portable Photo size: 17X13, 21-inch diagonal line4

MySQL versions, for the Add index processing is different, there are three main types: (1) Copy table methodThis is the earliest supported way to create an index INNODB. As the name suggests, creating indexes is done through temporary table copies.

The following is a simple understanding of their own, as a reminder of the journal, so write more confusing. If you understand something wrong, please help me correct it.Flume-ng does not have before the real-time stream source to the file, only

log file classification: redo log filesArchive log filesWarning log fileTrace log filesRedo_log_file file function:1) Maintain data consistency2) record the change operation in the databaseRedo_log_friles in groups, a group can have more than one

Oracle online backup In Oracle, online backup requires database operations in ARCHIVELOG mode. In an online store, the database must be on 24x7. Therefore, it is impossible for users to back up the database offline without accessing the database.