Consistent consistency control of exp parameters

The default value n, which is used to control how the export data is persisted at the time of the EXP data and the consistency of the DDL operations in the database against the exported table at the same time.
This parameter has 2 values n Y.
Suppose you have the following export operations:
Time User1 User2
1 Export Table 1
2 DDL Operations for Table 1 and table 2 and submit
3 Export Table 1 complete
4 Export Table 2
5 Export Table 2 complete
In the case of Consistent=n, the exported file will not have User2 DDL operation results for table 1, but the DDL operation for table 2 will take effect;
In the case of consistent=y, there will be no user2 of the DDL Operations against table 1 in the exported file, nor the results for the DDL operations of table 2;
Therefore, it can be understood that when a table's export operation starts, whatever changes you make to the table are not reflected to the final export result;
However, if you use the persist consistency parameter, any modifications to the database tables will not be reflected in the export results after the entire export session begins. The above operation types should contain DDL and DML.
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