Make your size a factor in your dataframe by: temp$size_f = factor(temp$size, levels=c(‘50%’,’100%’,’150%’,’200%’)) Then change the facet_grid(.~size) to facet_grid(.~size_f) Then plot: The graphs are now in the correct order.
Looking for answers to this problem, I stumbled upon this link It seems that Hibernate/JPA isn’t able to automatically create a value for your non-id-properties. The @GeneratedValue annotation is only used in conjunction with @Id to create auto-numbers. The @GeneratedValue annotation just tells Hibernate that the database is generating this value itself. The solution (or … Read more
If you don’t want to retain the ordering of ids, then you can ALTER SEQUENCE seq RESTART WITH 1; UPDATE t SET idcolumn=nextval(‘seq’); I doubt there’s an easy way to do that in the order of your choice without recreating the whole table.
SELECT last_number FROM all_sequences WHERE sequence_owner=”<sequence owner>” AND sequence_name=”<sequence_name>”; You can get a variety of sequence metadata from user_sequences, all_sequences and dba_sequences. These views work across sessions. EDIT: If the sequence is in your default schema then: SELECT last_number FROM user_sequences WHERE sequence_name=”<sequence_name>”; If you want all the metadata then: SELECT * FROM user_sequences WHERE … Read more
Here is a good procedure for resetting any sequence to 0 from Oracle guru Tom Kyte. Great discussion on the pros and cons in the links below too. tkyte@TKYTE901.US.ORACLE.COM> create or replace procedure reset_seq( p_seq_name in varchar2 ) is l_val number; begin execute immediate ‘select ‘ || p_seq_name || ‘.nextval from dual’ INTO l_val; execute … Read more
If the SELECT returns more than approximately 5-10% of all rows in the table, a sequential scan is much faster than an index scan. This is because an index scan requires several IO operations for each row (look up the row in the index, then retrieve the row from the heap). Whereas a sequential scan … Read more
Yes: list1 + list2. This gives a new list that is the concatenation of list1 and list2.