How to count the values in row
Hello50 columns in a table are and 10 records are there. In these 10 records are not inserted not all columns (some are null values). How to find the values of The Count of Record (row).
For example
Table
P1 p2 p3 p4 p5 p6 p7 p8 p9 p10...
10 20 30 40 50
20 30
60 80
In the table below - before, how to find
the number of values in 1 record is 5
the number of values in 2nd record is 2
the number of values in 3rd record is 2
--
Thank you and best regards,
Hari
decode(p1,null,0,1)+
decode(p2,null,0,1)+
decode(p3,null,0,1)+
...
Tags: Database
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Here's what I have so far:
Returns:col object_name format a20 select object_name, created, last_ddl_time from user_objects where object_type = 'VIEW'
How can I add a last column that counts the number of rows returned by this view?OBJECT_NAME CREATED LAST_DDL_TIME -------------------- --------- ------------- AISLE_AVG 11-FEB-12 11-FEB-12 COURSE_AVG 11-FEB-12 20-FEB-12 EXE_12_VIEW 11-FEB-12 21-FEB-12 L1_P2 17-FEB-12 17-FEB-12 L1_P3 17-FEB-12 17-FEB-12 L1_P4 17-FEB-12 17-FEB-12 L1_P5A 17-FEB-12 17-FEB-12 L1_P5B 17-FEB-12 17-FEB-12 LAB3_1A 12-FEB-12 20-FEB-12 LAB3_1B 12-FEB-12 20-FEB-12 LAB3_2A 12-FEB-12 20-FEB-12 LAB3_2B 12-FEB-12 20-FEB-12 LAB5_1 19-FEB-12 19-FEB-12 LAB5_2 19-FEB-12 19-FEB-12 LAB5_3 19-FEB-12 19-FEB-12 LAB5_4 19-FEB-12 19-FEB-12 LAB5_5 19-FEB-12 19-FEB-12 LAB5_TIMES 19-FEB-12 19-FEB-12 LAB6_1 19-FEB-12 19-FEB-12 LAB7_VIEW 20-FEB-12 20-FEB-12 PROGRAMS 11-FEB-12 21-FEB-12 STUDENT_GPA 11-FEB-12 21-FEB-12 22 rows selected
EDIT - here is a dump of my paintings, and here are my views.
Edit2 - this is possible by using the DECODE function, by chance?The function...
CREATE OR REPLACE FUNCTION view_row_count (view_name VARCHAR2) RETURN NUMBER AS retval NUMBER; BEGIN EXECUTE IMMEDIATE 'select count(*) from '||view_name INTO retval; RETURN retval; END view_row_count; /
And now the query...
select object_name, created, last_ddl_time, view_row_count(object_name) as view_row_count from user_objects where object_type = 'VIEW'
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