create directory

LOB large Object processing: A database field primarily used to store large amounts of data, which can store up to 4G of unstructured data. Mainly introduces the storage of character type and binary file type LOB data, separately describes the

oracle| Source Code People who have used JDBC even ORACLE will know the fact that we need the library file Classes12.zip exists in the $oracle_home/jdbc/lib directory (but there are still some rookie often in the forum to seek this library files,

There are unrecoverable errors in data read from floppy disks or hard disks, bad sectors and bad file allocation tables on the disk. (2) Hard disk configuration error (hard disk configuration errors) The hard drive is improperly configured, the

Operation of files and directoriesPHP is very handy for processing files and directories on the local server, but sometimes permissions and path-related issues occur1. Open the fileResource fopen (string filename, string mode [, bool

SSH service supports a security authentication mechanism, that is, key authentication. The so-called key authentication, in fact, is to use a pair of encrypted strings, one called the public key, which anyone can see its contents, used for

First look at the official documentation on the explanation: Managing External Tables Oracle Database allows you read-only access to data in external tables. External tables are definedas tables that does not reside in the database, and can is in