I dont want to print the repeated value(NAME) of C1 multiple times as below.
C1C2C3C4
NAMEJOHN10ABC
SMITH30DEF
ROBERT60XYZ
I could do it using the below query using union with the rownum.
select * from (
select rownum rn, c1,c2,c3,c4 from table_new
) where rn =1
union
select * from (
select rownum rn, decode(c1,null,null),c2,c3,c4 from table_new
) where rn between 2 and 3
Is there any other way of displaying using a single sql query.
I have a table with multiple rows for the KEY attribute(its not a primary key) and a Rank for each row.
I want a query which fetches one row per KEY attribute.The row with lesser Rank should be considered. But in-case if the value is null for any column the value for next Rank should be considered.
WITH TMP_TBL AS ( SELECT * FROM ( SELECT 'A' DUN,'1' RNK,'A21' col1,NULL col2,'A41' col3,NULL col4 FROM dual UNION ALL SELECT 'A','2','A122','A23',NULL,NULL FROM dual UNION ALL SELECT 'A','3','A32','A33',NULL,'A35' FROM dual [code].......
DUN is the KEY attribute . RNK is the Rank for each Row. COL1... COL4 are data attributes
I want this to be done with SQL only. So I tried various ways but none were successful.Finally I created a Multi Row function row_nvl and it worked.
SELECT DUN, row_nvl(rownvl_param_type(RNK,col1)), row_nvl(rownvl_param_type(RNK,col2)), row_nvl(rownvl_param_type(RNK,col3)), row_nvl(rownvl_param_type(RNK,col4)) FROM TMP_TBL GROUP BY DUN
But I don't think my manager will allow me to deploy a Multi Row function .
Our organization is attempting to learn more about the partitioning features of Oracle 11g. I've been reading the partitioning manuals, and I have not found a clear answer on this topic, but I suspect I know the answer.
If you create a range partitioned table; using interval partitioning, say something like this:
CREATE table range_parti ( CODE NUMBER(5), DESCRIPTION VARCHAR2(50), CREATED_DATE DATE) PARTITION BY RANGE (created_date) INTERVAL (NUMTOYMINTERVAL(1,'MONTH')) ( PARTITION my_parti VALUES LESS THAN (TO_DATE('01-NOV-2007','DD-MON-YYYY')) );
but you try to insert a null value as the partition key, you get the following error:
SQL> INSERT INTO range_parti VALUES (1,'one',NULL); INSERT INTO range_parti VALUES (1,'one',NULL) * ERROR at line 1: ORA-14400: inserted partition key does not map to any partition Elapsed: 00:00:00.07
Is there no way to tell it to use a default partition for NULL values? Or specifically designate a partition for NULL values WITHOUT having to manually list out each partition? It seems it works if you don't use the INTERVAL keyword, list out your partitions, and use MAXVALUE. However, our hope to avoid having that as it creates monstrously huge DDL statements for tables that have lots of date ranges, and we will be forced to manually add new partitions each month as data is added/time passes.
It appears from my experience so far, if your column can allow nulls, you cannot use interval range partitioning on that column.
previously i set null constraint to the column and creating some rows and need to change new entering values as not null constraint to the column in oracle without disturbing the old records. how can I do that.
I'm using the Oracle Emp,Dept tables as my sample. I want to display certain table column values based on some criteria. If met, display those values otherwise display other column values
For example:
So when dept.deptno=10, I want to display these 2 columns values 1. dept.deptno 2. dept.dname
otherwise, display these 2 columns values 1. dept.loc 2. null
Can this be done with one case, decode or "other" type of structure going thru the table one time??
SELECT emp.empno, emp.ename, CASE WHEN dept.deptno = 10 THEN to_char(dept.deptno) [code].......
TABLE_A ------------------------------ ID DEPT CRS ------------------------------ 1 CS CS_100 2 SCIENCE SCI_150 3 MATH MATH_400 4 HISTORY HIS_110
[Code]...
To display CRS from TABLE_A where DEPT = 'MATH' but in the following format.,
-------------------------------------------- NO DEPT CRS -------------------------------------------- 1 MATH MATH_400, MATH_550, MATH_230 --------------------------------------------
instead of., -------------------------- NO DEPT CRS --------------------------- 1 MATH MATH_400 2 MATH MATH_550 3 MATH MATH_230 ---------------------------
How I can build a query with conditions and calculations? E.g. I've got this table
Start | End | Working Place | Mandatory ------------------------------------------------------------------------------------ 01-JAN-13 | 11-JAN-13 | Office | 1 14-JAN-13 | 25-JAN-13 | Home Office | 0 04-MRZ-13| 15-MRZ-13 | Office | 0 11-FEB-13 | 22-FEB-13 | Office | 1
Now if column working place=Office and column mandatory=0 the new column "price" has to calculate: (End-Start)* $25.00 and if working place=Office and column mandatory=1 the "price" column has to calculate: (End-Start)* $20.60 else $0.00
I tried it with the case statement but I didn't know how to calculate my values and display it to the virtual column "price".
Something like case when Working_Place = 'Office' and Mandatory=1 then ... else '0.00' end as PRICE ?????
I need a generic query to generate total # of records for each table in a schema, total # of records that are not null for each column in the table, and total # of records that are null for each of those columns in those tables.
ex:
the output should look like this.
owner schema table_name total# recs in the table, column_name, ------ ------ ---------- ------------------------- -----------
# of records not null # of records null ---------------------- --------------------
I have a table with the following column and data is like this.
SQL>CREATE TABLE test ( column1 varchar2(50)); SQL>INSERT INTO test VALUES('ABC XYZ'); SQL>INSERT INTO test VALUES('MNO PQR'); SQL>INSERT INTO test VALUES('ABCD ABC'); SQL>INSERT INTO test VALUES('PQR MNOP');
I have a query that seems to repeatedly call an index scan on a table for reasons I'm not sure about. Why it would be doing the index scan on totaldwellingarea in the dimensions table (DIMEN_PID_TDWELLAREA) repeatedly? This only seems to happen when I put on the range clause d.totaldwellingarea between scr.lowvalue and scr.highvalue.
I am using Oracle version 9.2.0.3.
select d.propertyid,d.totaldwellingarea, e.size_, scr.size_ from eqid e, dimensions d, brt_eval.size_code_ranges scr where e.style not in ('1','A','G','L') and e.size_ = '0' and d.propertyid = e.propertyid and e.style = scr.style and d.totaldwellingarea between scr.lowvalue and scr.highvalue;
The table has single column & the values may differ,that is, they may have 1-2-3-...-n in a single row, but the desired output is to be in the rows as shown above.
I tried concepts of SQL up to my knowledge, but I failed. The query to be done only in SQL.complete this query.
As I am doing a outer join, if the resource is not available on a particular day the resource_id is coming as NULL as it is not available. Is there any way to populate this NULL resource_id with the original resource_id as the resource_id is same for all the result set.
I have a table and data as below.I need to select all the records if value have both 'M' and 'D'.If there is only 'M' or 'D' then select should not pull any records.
WITH data as ( Select '1' id, 'M' value from dual union all Select '1' id, 'M' value from dual union all Select '1' id, 'D' value from dual union all Select '1' id, 'D' value from dual ) select value from data group by value
I tried below query but it is not working.
WITH data as ( Select '1' id, 'M' value from dual union all Select '1' id, 'M' value from dual union all Select '1' id, 'D' value from dual union all Select '1' id, 'D' value from dual ) select * from data group by value having sum(count(distinct(value))) > 1
SQL> Describe Stu_Table Name Null? Type ----------------------------------------- -------- ---------------------------- STU_ID VARCHAR2(2) STU_NAME VARCHAR2(10) STU_CLASS VARCHAR2(10)
now when i try to modify this Stu_id column to not null its give me error.
SQL>ALTER TABLE Stu_Table MODIFY Stu_Id int(3)not null; ALTER TABLE Stu_Table MODIFY Stu_Id int(3)not null * ERROR at line 1: ORA-01735: invalid ALTER TABLE option
and when i try to add new column with not null its also gives me error
SQL> ALTER TABLE Stu_Table add C1_TEMP integer NOT NULL; ALTER TABLE Stu_Table add C1_TEMP integer NOT NULL * ERROR at line 1: ORA-01758: table must be empty to add mandatory (NOT NULL) column
create table sample1 ( i number , j date, k number)
insert into sample1 values (1,'23-Apr-2010',11) insert into sample1 values (2,'22-Apr-2010',12) insert into sample1 values (3,'21-Apr-2010',13) insert into sample1 values (4,'19-Apr-2010',14) insert into sample1 values (5,'18-Apr-2010',15) insert into sample1 values (6,'17-Apr-2010',16)
I would like to get nulls , if there is no data for a date. As we can see , here i am missing the data for '20-Apr-2010'.
I did it through "UNIX" , but it's not efficient.
The data might be missing for the complete week also. I need to test in this way only for the last 7 days. I tried something like this:
select i, j , sum(k) from sample1 where j in (select to_date(sysdate - rownum) from dual connect by rownum < = 7) group by i, j
I have select list which has null and other values. I have created a blank HTML region with the following text
Report for the year &P2_YEAR. and for geography &P2_GEOG.
Now P2_YEAR works fine because, it is always populated with a year. However, &P2_GEOG has 'All' as null value since we can see the report for all geographies. However, if the all option is selected, the above &P2_GEOG. shows as null. Since its not a PL/SQL proc, I cannot put in a NVL. I am guessing one possible way is to write a PL/SQL code before region and then check if its null and then try to populate a new hidden field and show, something like that. Wondering if there is a way to do it directly in the HTML region?
I have 2 tables, AFF_TEMP and COUNTY AFF_TEMP has the following columns FNAME, LNAME, EMAIL and COUNTY COUNTY has 2 columns COUNTY_ID and CNAME
Both tables have the following test data AFF_TEMP Joe, Bloggs, joe@gmail.com, '' Ann, Bloggs, anne@gmail.com,Donegal
and COUNTY column in AFF_TEMP can contain a NULL value
County table has the following Test data, 1, Dublin 2, Donegal 3, Tipperary, 4, Galway
I am trying to select the following from both tables FNAME, LNAME, EMAIL, COUNTY_ID.Tried the following queries select a.FNAME, a.LNAME,a.EMAIL, C.COUNTY_ID FROM temp_aff A LEFT OUTER JOIN COUNTY C ON A.COUNTY=C.CNAME OR (A.COUNTY IS NULL) select a.FNAME, a.LNAME,a.EMAIL, C.COUNTY_ID FROM temp_aff A, COUNTY C WHERE C.CNAME IN (SELECT UPPER(A.COUNTY) FROM TEMP_AFF A)
We are working on a migration project and we need to move 75 million rows from source system to target system.
Total number of columns in source system - 90 cols.
Out of the 90 columns 10 cols are system fields and rest 80 are properties for each record.
We are required to migrate all system cols and some required properties. In total we will migrate around 25 columns[10+15] for each record.
Before actaul migration , we need to do a data cleansing activity and hence we move the data to a staging table.
To create the staging table, we considered the below appraoches.
1. Create the staging table with around 30 coloumns so as to fit the data from source system[map the columns based on datatype]
2.Create the staging table with actual columns[90 columns] and import only the required properties. The rest all columns will remain NULL.
Do the data cleansing and move to target system.
My question here is, if we go with approach 2, We will not mix the data, as there will be a one-to-one mapping. But many columns will not have data and remain NULL. Will it affect the performance since we deal with 75 million rows.
I have main query..And i written a Query for Issued Quantity. The query is retrieving exact data. And when i add the Query in main query the data is coming with extra null values.
for ex. Query for Issued Qty fetch 16 records. and i run the main query it fetch 20 records...there r 4 records which issued Qty is null. How can i restrict that records.
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - 64bit Production PL/SQL Release 11.1.0.6.0 - Production "CORE 11.1.0.6.0 Production"
I have Event_month, Event_date in SELECT statement. Results of the query has NULL values as well.. I am doing ORDER BY Event_month, and I want NULL values to be at the top..
SELECT d.event_code_dt, count(d.event_number) count1 FROM main_event a,sec_event d WHERE a.event_id = d.event_id(+) GROUP BY d.event_code_dt ORDER BY d.event_code_dt, count(d.event_number) desc
Results are like this
11-MAY-10 21-MAY-10 22-MAY-10 NULL
And I want results to be like this: NULL 11-MAY-10 21-MAY-10 22-MAY-10
Same thing happens with Event_month NULL Feb 2009 Aug 2009
How can I use OR condition in sql to check whether if the 6 col values in a row is NULL, I need something like below, but idk the syntax of checking if either of the mentioned cols is null using an or condition.
select a.mid FROM table_a a JOIN table_b b ON a.dept = b.dept JOIN table_c c ON b.eid = c.eid WHERE a.tid = :tid AND (a.i1 or a.i2 or a.i3 or a.n1 or a.n2 or a.n3 or a.t1 or a.t2 or a.t3 ) IS NULL
