SQL & PL/SQL :: Update Number Of Rows In Three Columns In Table?
Dec 13, 2011
how to update the middle of plenty rows in the middle of the columns
sample_data
id name state REGION LOC
1 v A.p 1 1
2 a
3 g K.A 0 3
4 y
5 i T.N 1 0
6 l M.P 0 1
7 c U.P
This is sample data,and i have this kind of large data and i need to fill the rows which are empty. In three columns state,region,loc with data like 0,web_intimation,1,
trying to update a column in a table which has 3 columns of 16million rows from column in another table which has 1million rows, there is no relationship between the 2 tables.
Table A has 3 columns of 16million rows, the first two columns have 16million ID numbers, the 3rd colunm is currently NULL.
Table B has 1million Numbers, i need to somehow update column 3 in table A using the numbers in table B, it doesnt how many times each of the 1 million numbers are used but i dont want it to just update every row to the same value.
I am trying to update columns of Table A with the columns of Table B. Both these tables have 60,000 rows each. I tried this operation using following 2 queries:
Query 1
Update TableA A set (A.col1,A.col2,A.col3)=(select B.col1,B.col2,B.col3 from TableB where A.CODE=B.CODE)
Query 2 Update TableA A set (A.col1,A.col2,A.col3)=(select B.col1,B.col2,B.col3 from TableB where A.CODE=B.CODE) where exists A.code = (select B.code from TableB B where A.code=B.code)
When i execute these two above queries, it keeps executing indefinitely.
I have two table and trying to update tableA with data from tableB but gives an error. My TableA has columns - colA,colB,colC,colX and table B has columns - colA,colB,colX. Sample data looks like this:
this is the query I wrote update tableA a set (a.colX)=(select (b.colX) from tableB b where a.colA=b.colA and a.colB=b.colB);
When i run it gives this error:single row subquery returns more than one row.
tableB has only 1 value for colX for each colA,colB record but tableA has mutiple colA and colB repeated but for all of thsoe in table A i want to update the tableB.colX value for matching colA and colB.
I have a table A, whose table structure is in the below format.
Table A
ID DESC VALUE 123 A 454 123 B 1111 123 C 111 123 D 222 124 A 123 124 B 1 124 C 111 124 D 44
Now i need to insert the data from this table to another table B, the sturcture of which is as below
Table B
ID A B C D 1234541111111222 124123111144
How do i frame a query to fetch data from table A and insert that into table B? I don't want to use max and decode combination. as it would return only single row for an ID. I need all the id's to be displayed.
I am new to oracle, I have request to build a query,
we have table that generates data from 7am to 20pm for eavery hour it generates 4 rows and has 43 session values as 43 columns.
Now i want to find for every hour which is the hights session value at what time. in one hour it runs four times like 7, 7:15, 7:30 and 7:45 and each row has date, time and 43 session columns in table...
Here columns should be created based purchase dates dynamically with respect to quantity. Query out put will be like matrix format. So i feel that PIVOT & SYS_CONNECT_BY_PATH will not serve my requirement.
creating a stored procedure that updates the points column in the teams_tbl , the value that is updated in to the points column will be retrieved from the fixture_team table. so if team a has more goals than team b then the points column for team a will be increased by 6 else if the scores are equal they get 4 points each.
I would like to UPDATE the columns p1 and p2 of my table student (studentid:pk,name,p1,p2,...) for a given studentid.and I have a when-button-pressed trigger with this
UPDATE student SET student.p1=:validation.proj1, student.p2=:validation.proj2 where UPPER(student.studentid)=UPPER(:validation.studentid);commit_form;
when I run my form with a correct studentid, I got this error: FRM-40508: ORACLE error: UNABLE to INSERT record
but it is cworking correctly in sqlplus; and I have all priveligies.
Is there any way to generate columns dynamically by depending on the rows in a table in 11G .
Ex: If the deptno in DEPT table is not constant,then how to generate the N numbers of columns based on the deptno. Below query is working when we hard coded the deptno (10,20,30,40).What else if we more number of departments and we don't know the departments also.
Connected to Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 Connected as dbo
SQL> SELECT * FROM (SELECT deptno, job, sum(sal) sal FROM SCOTT.emp GROUP BY job, deptno) PIVOT(sum(sal) FOR deptno IN(10, 20, 30, 40));
I need each different ACC_ID with ACC_AMT in different columns. The table may have other different ACC_ID also, but I will fetch only what I need. What is the best way to do this?
So far I have tried this:
SELECT (CASE WHEN ACC_ID=111 THEN ACC_ID END) AS ACC_ID_1, (CASE WHEN ACC_ID=111 THEN ACC_AMT END) AS ACC_AMT_1, (CASE WHEN ACC_ID=222 THEN ACC_ID END) AS ACC_ID_2, (CASE WHEN ACC_ID=222 THEN ACC_AMT END) AS ACC_AMT_2, (CASE WHEN ACC_ID=333 THEN ACC_ID END) AS ACC_ID_3, (CASE WHEN ACC_ID=333 THEN ACC_AMT END) AS ACC_AMT_3 FROM <TABLE_NAME>
if there is any inbuilt function or way to find a row in the table that is having value for maximum number of columns.
For example, the table A has 5 columns (c1,c2,c3,c4,c5) and it has 3 records(r1,r2,r3) and r1 has values only for c1,c2 r2 has values only for c1,c2,c3,c4 r3 has values only for c1
so I should get the result as "r3 has values for 4 columns & it is not having value for column c5".
I have a table ABC with two columns NAME and SEQUENCE. The valid values of sequence are from 1..50. The table may not have all the Sequence number. For example following is the data in my table..
Basically I want to have rows for the sequence numbers which are not present i my table. I thought of using the following query to generate a sequence and then join, but does not work.
select rownum from dual connect by rownum <=50
I tried something like
with temp as (select name, sequence from abc where supp_ref_order is not null order by sequence ) select rownum as num, temp.name from dual, temp connect by rownum <=50 where temp.sequence =num
I have this requirement in Oracle FORMS ver 6i where I populate some records in a table in a datablock and display them on the screen. A facility needs to be provided to the end users to select the records randomly by just entering the count of the records in a non-d/b text field. The number entered in the count field will decide how many records are to be selected randomly.
I tried using the query -
UPDATE <table a> SET <col 1> = <value 1> WHERE rowid IN (SELECT rowid FROM (SELECT * FROM <table a> ORDER BY DBMS_RANDOM.VALUE) WHERE <col 2> = <value 2>) /
which I found on the link [URL] but while compiling, the Form gives a compilation error for the ORDER by clause - i'm sure there's no syntax error in the way I have written it...
Consider tables A,B,C,D,E,F. all are having 100000++ records Tables B,C,D are dependent on table A (with foreign key constraint). When I am deleting records from all tables, table B,C,D are taking max 30-40 seconds while table A is taking 30-40 mins. All tables are having indexes.
Method I have used:
1. Created Temp table
2. then deleted all records from B,C,D,E,F for all records in temp table for limit of 500. delete from B where exists (select 1 from temp where b.col1=temp.col1);
3. Why it is taking too much time for deleting records in table A.
Is there any thing that during deleting data from such master table, it is referring to all dependent tables even if dependent data is not present ?
I have a report with single row having large number of columns . I have to use a scroll bar to see all the columns. Is it possible to design report in below format(half columns on one side of page, half on other side ofpage :
Column1DataColumn11DataColumn2DataColumn12DataColumn3DataColumn13DataColumn4DataColumn14DataColumn5DataColumn15DataColumn6DataColumn16DataColumn7DataColumn17DataColumn8DataColumn18DataColumn9DataColumn19DataColumn10DataColumn20Data I am using Apex 4.2.3 version on oracle 11g xe.
I need to transpose the following table columns to rows and rows to columns...Im not quite sure how to acheive this...I have the following table with fixed number of columns and dynamic number of rows based on date filter in query
MONTH_YEAR RMS RMS_OCC TTL_RMS --------------------------------------- SEPTEMBER 200917790017790 OCTOBER 2009183831278818347 NOVEMBER 2009177901460517762
and I need to display this as
COL1 SEPTEMBER 2009 OCTOBER 2009 NOVEMBER 2009 -------------------------------------------------------------- RMS 17790 18383 17790 RMS_OCC 0 12788 14605 TTL_RMS 17790 18347 17762
i am reading the columns value from different table but i want to update it with single update statement. such as how to update multiple columns (50 columns) of table with single update statement .. is there any sql statement available i know it how to do with pl/sql.
