oracle export of data edpdp

1. Create a directory object under sqlplus

2, expdp username / password directory = data_dir tables = dumpfile = table name date table .dmp logfile = _ _ Date .log query = table name table name: "where id = 1

　　Note: After the query special characters need to be escaped. \ "\> = \ '

Import Data Reference: https://www.cnblogs.com/promise-x/p/7477360.html