SQL & PL/SQL :: Query To Retrieve Number Of Not Null Rows For Each Column?
Jul 7, 2011
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
---------------------- --------------------
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Aug 29, 2012
I have the following query:
select col_1,col_9 from
book_temp b
where b.col_1 is not null
order by to_number(b.col_16)
;
What I want to add is the following:
COL_9
=====
NULL
A
B
NULL
C
D
E
F
NULL
G
I need to connect the NON-NULL rows to the preceding NULL row.
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May 31, 2011
I have a table with columns emp_i, LOC_C and SUBSID_C. I want to find all emp_i's with LOC_C OR SUBSID_C as always NULL. Please note that the value should be NULL, always, for all dates.
--------------------------------------------
EX:
emp_i----LOC_C---SUBSID_C--Eff_Date
100------20------30--------01/01/2011
101------NULL----10--------05/01/2011
102------NULL----NULL------02/01/2011
101------20------NULL------02/01/2011
102------NULL----NULL------05/01/2011
103------NULL----20--------01/01/2011
103------NULL----NULL------02/01/2011
--------------------------------------------
The query ---
should return 102 as LOC_C OR SUBSID_C is ALWAYS NULL.
should return 103 as LOC_C is ALWAYS NULL.
should not return 101, as LOC_C is not ALWAYS NULL.
In other words, the query should give list of emp_i who never ever had a non-null value for LOC_C OR SUBSID_C. The purpose is to find the emp_i for which the columns LOC_C and SUBSID_C are never used.
I tried the query:
---------------------------------------------------
SELECT DISTINCT ORG_EMP_I FROM tab1
WHERE ORG_GRP_I = 58
AND ORG_EMP_I NOT IN (
SELECT DISTINCT org_emp_i
FROM tab1 ap
WHERE ap.ORG_GRP_I = 58
AND trim(ap.LOC_C) IS NOT NULL OR ap.ORG_SBSID_C IS NOT NULL )
---------------------------------------------------
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Dec 22, 2011
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
The results I am expecting is
DUNCOL1 COL2 COL3 COL4
AA21 A23 A41 A35
BB12 B23 B15
CC12 C13 C33 C14
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 .
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Dec 13, 2012
I have table with the values as below.
C1C2C3C4
NAMEJOHN10ABC
NAMESMITH30DEF
NAMEROBERT60XYZ
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.
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Jun 13, 2007
In sql plus How do I get the number of distinct rows of a certain value?
for example
select group_number from records group by group_number
How would I query for the total number of group_numbers in this query?
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Feb 11, 2013
We are using Oracle 11g with Apex 3.2 on AIX. We are reporting data from customer satisfaction surveys. I'm using the following sql to create my report
<code>select * from(
select month,'Overall Satisfaction' as q_group, 1 as srt,Overall Satisfaction,site,
case when count(*) < 31 then '*' else
round((sum(ttos)/count(*))*100,0)||'/'|round((sum(bfos)/count(*))*100,0)||'/'||count(*) end ospct
from v_XXX_report a,(select distinct month_dt month from v_XXX_report) b
where Overall_Satisfaction is not null and year_dt = 2012
[Code]....
The problem is that site is not allways present and sometimes I have other variables in addition to site. This creates a situation where the month columns will not allways appear at the same column number. For example, When I run this query as is then the "JAN" column is Col3 (first column is a break, col2 is not shown). When I run this query without site then "JAN" is the second column. I would like to create column links for the "JAN" - "DEC" columns but not for any other columns.
Another issue - in the column link creation screen I can create up to 3 variables that I can pass to the next page. Since my query is a pivot I'm uncertain how to pass the column heading or the row value (for col2)
ie
Overall Satisfaction JAN FEB MAR APR MAY ...
Overall Satisfaction 12/12/200 12/12/210 12/12/220 12/12/230 12/12/240...
Recommend 12/12/200 12/12/210 12/12/220 12/12/230 12/12/240...
etc.
So if I clicked on the values at Recommend:FEB how can I get "Recommend" and "FEB" into variables that I can use on the next page? I've tried #column_name#, #month#, #q_name# and #APEX_APPLICATION.G_F10# but no luck.
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Sep 17, 2010
DECLARE
l_query VARCHAR2(4000);
TYPE cursor_type IS REF CURSOR;
[Code].....
How can I get the total number of rows returned by the query?
I want to be able to check omething like c1.ROWS = 0
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Oct 12, 2012
I have a table something as below
Things_t
Things Characteristic Char Value
Item 1 Colour Red
Item 1 Packaging
Item 2 Shape Square
Item 2 Brand Spunk
Now i want to reterive an item with none of its char values as Null. Using the query “ select distinct things from things_t where char value is Null ” will fetch the item 1 also together with item 2. i want to fetch a record from thing for which none of the char values are Null such as Item 2.
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Dec 11, 2009
I need a single select query which converts all the rows into a single value . Below is my requirement :
Create table email_tbl(emailid varchar2(30));
insert into email_tbl('1@y.com');
insert into email_tbl('2@y.com');
insert into email_tbl('3@y.com');
insert into email_tbl('4@y.com');
Now , I need a single select query which gives me the below results.
1@y.com,2@y.com,3@y.com,4@y.com
I have done the above by using a cursors in the pl/sql objects.But want to achieve this with a single sql/query.
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Aug 5, 2010
I has a table of structure of varchar2 datatype.
NO
----------
1-2
3-4
5-6
desired output is:
SQL>1
2
3
4
5
6
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.
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Mar 16, 2011
I have a table which has a not null column. the column is date field. I am trying to change it to Null. But it is giving a error.
I am using below query.
ALTER TABLE T_test
modify (paid_to_date null)
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Jan 9, 2012
when i follow this steps mention on this website
[URL].........
to modify column from null to not null i got this error and on this website its show successful
my steps are
first i create a table
SQL> create table Stu_Table(Stu_Id varchar(2), Stu_Name varchar(10),
2 Stu_Class varchar(10));
Table created.
Then insert some rows into Stu_Table
SQL> insert into Stu_Table (Stu_Id, Stu_Name) values(1,'Komal');
1 row created.
SQL> insert into Stu_Table (Stu_Id, Stu_Name) values(2,'Ajay');
1 row created.
SQL> insert into Stu_Table (Stu_Id, Stu_Name) values(3,'Rakesh');
1 row created.
SQL> insert into Stu_Table (Stu_Id, Stu_Name) values(4,'Bhanu');
1 row created.
SQL> insert into Stu_Table (Stu_Id, Stu_Name) values(5,'Santosh');
1 row created.
SQL> select * from Stu_Table;
ST STU_NAME STU_CLASS
-- ---------- ----------
1 Komal
2 Ajay
3 Rakesh
4 Bhanu
5 Santosh
Table Structure is like this
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
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Oct 1, 2012
I am having issue with Oracle reserved words, one of the application is using table which has NUMBER as column. I am not able to query that table matching database with NUMBER column.
HERE
select a.*
from DOC a , FOLDER B
where a.NUMBER= B.INCIDENT_ID
and b.open = 'Closed'; I tried double quotes (“”) and sigle quotes too, none of them worked.
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Dec 1, 2010
My table "xxbuyer_det" contains the below data.
buyer_id Invoice_numPriceItem
------------------------------------
148137110A
149314211B
149314315C
149314415F
148120520D
148120625E
My requirement is to select the rows which have same buyer_id more than or equals to two times (>=2). I am trying with the below query. But this query is failing(not retrieving any data) as i have used group by class and count value is 1 for every record.
SELECT BUYER_ID, INVOICE_NUM, PRICE
FROM
xxbuyer_det
GROUP BY
BUYER_ID,
INVOICE_NUM,
PRICE
HAVING COUNT(*) >=2
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Jun 13, 2013
how to retrieve deleted rows in oracle?
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Feb 24, 2010
I need to retrieve only one telephone number against the parent id. The preference is to get mobile if available if not home number else work phone. How can I achieve this
I have given the sql code and sample output below
select
pp.phone_id
,pp.parent_id
,pp.phone_type
,pp.phone_number
from per_phones pp
[code]....
Actual results should be
PHONE_ID PARENT_IDPHONE_TYPEPHONE_NUMBER
12960 2500H1 9385789
311108 146564M 04879652
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Jun 14, 2010
How to retrieve duplicate rows from a table, suppose i don't know any column names. Without hard-coding column names I need to find.
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Mar 7, 2012
I have created a table called ct_temp and it's structure is:
create table ct_temp(id char(2),srs number(3),amt number);
Result : Table Created
I now insert the following rows into the table:
id srs amt
1 62 30000
2 65 50000
3 65 70000
4 65 80000
5 62 16000
6 65 10000
7 65 100000
8 65 10
Commit
Then I issue the following query to retrieve data based on a specific criteria (Actually I have condensed the table and data because in Production, I have large number of rows; so for simplicity I am using 8 rows with one table)
criteria : I then want to retrieve the following:
for srs = 62, all values that is greater than 10,000
Answer: select decode(srs,62,ab.amt)temp1 ,decode(srs,65,ab.amt)temp2 from ct_temp ab
where decode(srs,62,ab.amt)>10000
Works like a charm and retrives the results.
Now comes the big issue
I want to retrieve the values for srs = 62 which is greater than 10,000 and at the same time I also want to retrieve the values for srs = 65 which is less than srs = 62.
Typically I wrote the query as:
select decode(srs,62,ab.amt)temp1 ,decode(srs,65,ab.amt)temp2 from ct_temp ab
where decode(srs,62,ab.amt)>10000
and decode(srs,65,ab.amt)<decode(srs,62,ab.amt)
I should atleast get one row for srs = 65 which is id # 8 but it displays blank rows or "no rows returned".
I am actually preparing a ad-hoc report for the business analyst and stuck at this step due to which I am unable to proceed any further. I have used DECODE function because of the requirement specified by Business Analyst.
I have tried the following in the office:
using EXISTS operator = no luck
using INLINE VIEW = no luck
Is there any way around?
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Aug 15, 2012
I have two tables which have identical schemas, one table (tbl_store) is used to hold the latest version, and the other table (tbl_store_audit) holds previous versions. When the latest record is updated, it is inserted into the tbl_store_audit table as a revision, and the updated details are used as the latest record.
For example: The latest version is held in tbl_store, however the tbl_store_audit may hold 5 records which are the past records used before changes were made - these are seen as revisions.
I want to be able to compare what has changed between each revision in the tbl_store_audit table. For example: Out of the 10 columns, the change between revision 1 and revision 2 was the size from XL to XXL. The change between revision 3 and revision 4 was the size XS to M and price 4.99 to 10.99, and so on.
Eventually i will create an APEX report that will show the user the revision number and what was changed from and to.
I seen in a previous post i need to note my oracle version: Oracle version 10.2.0.4.0
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Jun 6, 2008
I am trying to retrieve all rows with the date of May 23rd, 2008. Our data is stored with the date and time.
How do I format the where clause so that the time is taken off? I am still a newbie with oracle and what I have is this:
Select Distinct Table1.*, Table2.*
from Table1, Table2
where Table1.file_name = Table2.file_name
and Table1.downloaded_date = Table2.date_loaded
and downloaded_date = '23/May/2008'
Of course, it's the last line not working because I don't know how to format it and no rows are retrieved when there are definately May 23rd rows stored in there.
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May 21, 2011
I am working on form which consist of two block, now i need to know total record in detail block, but in form structure i have multiple details entry aginst 1 master entry and after going for next master entry the details of privious master entry are going for posting that's why i am unable to use the currnt_record function. function to retrive the total number of records in details tab.
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Apr 23, 2010
I have table as follows:
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
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Jul 10, 2012
My requirement is as follows .
Oracle version details
BANNER
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production
PL/SQL Release 11.1.0.7.0 - Production
CORE 11.1.0.7.0 Production
TNS for 32-bit Windows: Version 11.1.0.7.0 - Production
[code]....
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Jan 20, 2012
example
My table mst_product(product_code,product_name) and its value is (190,toy),(198,tim),(280,bush),(jupiter,top),(AUTO2,auto),(281,tig),(282,com)...and so on
I want to make a query to select those items which is equal to and greater than 280. So how we make a query.How select those items which does not have any alphabetic letters.
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Dec 9, 2011
I am trying to do a simple query where I need to return the rows from a table and treat each rown according to some rules.The query works fine, and returns all the rows, usually I have 2 rows returned. WHen I add to the query where ROWNUM = 1, I get the first row returned, but when I use when ROWNUM =2 OR ROWNUM >1, I always get null rows retured, even if I have rows in the database. Here is my query:
SELECT on_time
INTO on_time2
FROM work.work_unit
WHERE work_code = 1
AND emp_no = :entry_blk.p_emp_no
AND work_date = :entry_blk.p_work_date
WHERE ROWNUM = 2;
--RETURN NULL
I changed it to the following format, but still I get the same results, only I get data when I say when rownum = 1, i get back the first record in the query
SELECT on_time
INTO on_time2
FROM (SELECT on_time
FROM work.work_unit
WHERE work_code = 1
AND emp_no = :entry_blk.p_emp_no
AND work_date = :entry_blk.p_work_date)
WHERE ROWNUM = 2;
I can't move forward in my form until I figure out why this is not returning records
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Apr 1, 2010
I need to list a count of rows where a DATE field is not null and group those counts by day.
Here's my sql so far...
SELECT
COUNT(DQ_DISTRBTN_DATE) as DQR_DIST,
DQ_DISTRBTN_DATE as DIST_DATE
from
ETL_PROCESS.BATCH
group by
DQ_DISTRBTN_DATE;
Because DQ_DISTRBTN_DATE contains time, how do I modify to achieve the desired result?
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Jan 6, 2011
I need a query to retrieve a particular string from all the columns and all tables in a specified schema.
For example:i had a value "Current" in a particular column in a particular table. i need to find this value if i don't know the table name and column name.
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Sep 30, 2011
example for retrieve data from blob column using pl sql procedure in oracle?
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Dec 2, 2010
the following statement gives each customer owns how many promotions.
Q:) how do i retrieve a customer who has max. promotions?
SELECT C.CUSTOMER_ID,COUNT(P.PROMOTION_ID)
FROM PROMOTIONS P,CUSTOMERS C
WHERE C.CUSTOMER_ID = P.CUSTOMER_ID
GROUP BY C.CUSTOMER_ID
=====================================================
CUSTOMER_ID COUNT(P.PROMOTION_ID)
-------------------------------------
001 | 5
002 | 8
003 | 4
004 | 6
005 | 5
006 | 3
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