What are the commands youd issue to show the explain plan
for select
Answer Posted / saraswathi muthuraman
SQL> explain plan for select * from dual;
Explained.
SQL> select
substr (lpad(' ', level-1) || operation || ' (' || options
|| ')',1,30 ) "Operation",
object_name
"Object"
from
plan_table
start with id = 0
connect by prior id=parent_id;
SELECT STATEMENT ()
TABLE ACCESS (FULL)
DUAL
2 rows selected.
Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
material view and view disadvantages?
I just want to maintain data like an employee can belongs to 3 or more departments . We can resolve this by using composite key but it avoids normalization rules. So Can anyone tell me how can I maintain data.
i wrote a pl/sql procedure. it must run every sunday 4.40 How can i schedule it with the help of dbms_jobs (or another other procedure with out creating bat file,exe file)
if you ctreate table identity
What is index-organized table in Oracle?
How to create tables for odbc connection testing?
How do I spool to a csv formatted file using sqlplus?
What are the common oracle dba tasks?
How to invoke the original export import utilities?
What privilege is needed for a user to create views in oracle?
how can db_files > maxdatafiles since db_files is for instance and the later is for database
What is the difference between Delete, Truncate and Drop in Oracle?
What are the uses of synonyms?
What are triggers in oracle?
Does oracle database need java?