To Copy a single table in a Schema into another existing Schema
CREATE TABLE myschema.mytbl LIKE myschema2.mytbl; INSERT INTO myschema.mytbl SELECT * FROM myschema2.mytbl;
To Copy all the tables in a Schema into another existing Schema
In cmd/terminal, dump the database
mysqldump -u root -ppass myschema > /path/to/myschema.sql
In cmd/terminal, use the new database and import
mysql -u root -ppass USE newschema; source /path/to/myschema.sql