I just ponder how to write SQL or PLSQ if I'd like to get more columns into the one column.
For example:
I have table T1 where are 10 records. One columns TEXT is VARCHAR2. And I need to get by SQL/PLSQL one record with the new column VARCHAR2 where will be written 3 records as I wrote.
I am able to get a list of all the duplicate location_code values.
select count(*), location_code from ZZPN_PARKING_PORTFOLIO_801_V group by location_code having count(*) > 1
But how can I select all the other columns from ZZPN_PARKING_PORTFOLIO_801_V where the location_codes are duplicated.
select * from apps.ZZPN_PARKING_PORTFOLIO_801_V where location_code in ( select count(*), location_code from apps.ZZPN_PARKING_PORTFOLIO_801_V group by location_code having count(*) > 1 ) order by location_code
my need is to perform merge - update when id column is matched, but one of others columns not.When id column is not matched then I perform insert.
It works fine for matched or not matched id column.
Commented code is my try to perform check for others columns, The code should not update when all columns match. It should update only when on of columns doesn't match (except id column of course, because it's key column).
begin merge into copy.table1 rr using ( select ID , DEALID , ESTIMATIONDATE , BOUNDOVERESTIMATDATE , ESTIMATIONTYPEID , MARKETAMOUNT , LIQUIDATINGAMOUNT , [code]....
I want to add some new columns in an existing table that has over 10 millions rows, but not at the end of existing columns, my requirement is such i want new columns between existing existing columns. Is it possible.....
I have limited permissions and am unable to create temp tables.So I would like to use a cursor to "create" a table of sorts then access/query it. But this "table"/cursor would have no column names so how do I refer to the columns? Is there a way to refer to a column by column number rather than column name in a query:
select column1 from tablename where column2 = 'abc'?
Is there a way in a query/update/insert to refer to a column by column number rather than column name?
declare cursor c1 is select 'abc', '8-Apr-2013', pk_id from EMPLOYEE where pk_id = '153' UNION select '1xyz', '4-10-2013', pk_id from EMPLOYEE where pk_id = '154' c1_val number;
1) Split values from "INST" Column : suppose 23 2) Find all values from "NUM" column for above splitted value i.e 23 ,
Eg:
For Inst : 23 , It's corresponding "NUM" values are : 1234,1298
3) Save these values into
A table Y : INST, NUM are column names.
INST NUM 23 1234,1298
1) I have a thousand records in Table X , and for all of those records i need to split and save data into Table Y.Hence, I need to do this task with best possible performance.
2) After this whenever a new data comes in Table X, above 'split & save' operation should automatically be called and append corresponding data wherever possible..
I need to update the current column with sum of the previous column values. Following are the creation scripts
DROP TABLE TEST_LOG; CREATE TABLE TEST_LOG (
[Code]....
Above query is working fine to retrieve the previous column values.But when we are updating the SUM_PRE_COLS column with those values it's not working fine.
I tried by using the following query
UPDATE TEST_LOG T SET SUM_PRE_COLS = ( SELECT LAG(T2.KEY0, 1, 0) OVER(ORDER BY T2.KEY0) + LAG(T2.KEY1, 1, 0) OVER(ORDER BY T2.KEY0) FROM TEST_LOG T2 WHERE T2.ROWID= T.ROWID);
Given a table with some columns and data associated with that. Need to find out a column or a combination of some columns, so that the values or combination of values will be unique in the table.The table and number of columns and the columns will be dynamic.
I need to split a column into multiple columns. The data in my column is separated by a Comma (,). But the data is dynamic and I could have any number of data separated by (,).
Quote:FOR Ex: If COL1 contains CRITERIA_ITEM_TYPE_ID, CRITERIA_ITEM_TYPE, DESCRIPTION, ITEM_DATA_TYPE
RESULT: should be 4 columns contains the values CRITERIA_ITEM_TYPE_ID and CRITERIA_ITEM_TYPE and DESCRIPTION and ITEM_DATA_TYPE
Is COL1 contains CRITERIA_ITEM_TYPE_ID, CRITERIA_ITEM_TYPE, DESCRIPTION
RESULT: should be 3 columns contains the values CRITERIA_ITEM_TYPE_ID and CRITERIA_ITEM_TYPE and DESCRIPTION
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.
INSERT INTO TEST_TBL VALUES( 1000, 2000, 3000, 4000 ) ;
Expected result
A1 1000 A2 2000 A3 3000 A4 4000
A1, A2, A3, A4 are hard coded fixed values.
I could have done this but not a good idea in case table TEST_TBL is not a single row table but an inline query on 1,00,00,000 records with summary functions. In my table I've a summary query instead of single row table.
SELECT 'A1', COL1 FROM TEST_TBL UNION ALL SELECT 'A2', COL2 FROM TEST_TBL UNION ALL SELECT 'A3', COL3 FROM TEST_TBL UNION ALL SELECT 'A4', COL4 FROM TEST_TBL
My requirement is to concatenate two column values and place them in a new column.I have done it using self join but it limits the purpose,meaning when I have more than 2 values for grouped columns then it won't work.How to make this dynamic,so that for any number of columns grouped,I can concatenate.
SELECT a.co_nm, a.mnfst_nr, a.mnfst_qty, a.mnfst_nr || ':' || a.mnfst_qty || ';' || b.mnfst_nr || ':' || b.mnfst_qty FROM vw_acao_critical a JOIN vw_acao_critical b ON a.co_nm = b.co_nm AND a.mnfst_nr = b.mnfst_nr [code]......
What will be the case when I need to concatenate for more number of values.
like when co_nm has three bahs and manfst_nr and manfst_qty has 3 values for each for bah.and if three are having same_mnfst nr then I should use something dynamic.how to achieve this.
I have a table where i have description column which free text column, the data in description column is seperated and i want to corvert 1 row data in multiple rows dependeing on the number of words.
eg
id description 78664 Pumps Alarm from CAMS RTU154
In the above example this column has 5 word so i want data in 5 rows like below
78664 Pumps 78664 Alarm 78664 from 78664 CAMS 78664 RTU154
This column data can be varied from 1 to any number of words.
As you can see, I removed the first four columns because the eventkey is the same. In this case, there is only the applicant which is different.So the rest should be blank.
I have a column which holds the data in the below format.
Source Data : >SNO_SDSDQ-8192-BN>SNO_54-99-24120-8192 >SNO_SDSDQ-8192-BN>SNO_54-99-24120-8192>SNO_54-90-16489-008G >SNO_SDPMDB-008G-11>SNO_54-90-18008-008G>SNO_54-62-08791-008G>SNO_20-81-00327 >SNO_SDPMDB-008G-12>SNO_54-90-17830-008G>SNO_54-62-08598-008G>SNO_20-81-00327
[code]..
Problem Statement : Split the above data into individual components and create columns / aliases dynamically.If the column is present then place the data under the created column.
Example 1) : >SNO_SDSDQ-8192-BN>SNO_54-99-24120-8192
Result Column Name : SKUCol_54-99 Data :SNO_SDSDQ-8192-BNSNO_54-99-24120-8192
Example 2) >SNO_SDSDAA-002G-101-J>SNO_54-90-16002-002G>SNO_54-62-05781-002G>SNO_20-81-00135-5
Column Name : SKU54-90Col_54_62Col_20_81 Data :SNO_SDSDAA-002G-101-JSNO_54-90-16002-002GSNO_54-62-05781-002GSNO_20-81-00135-5
Column Name can be derieved from the components like SNO_54-62-05781-002G
i.e. SNO_54-62-05781-002G ==> SNO_-05781-002G "54-62" will give the Col_Name
The First Column will always have data starting with SNO_SD% This column is constant and will be named as SKU.
I need this data to be placed in the same record / row but under different columns as per the data set.Basically, Can the data be split into multiple parts based on delimeters and the columns are created based on the unique data in the parts that form the data in the column.
when we have a primary key on 4 columns and we have, say 20 million rows and we want to add one extra row. How does oracle check whether the data on the primary key is unique to the record being added compared to the 20 million rows. Does it actually compare the record being added to all the rows present in the table?
When I create a data block based on a table using Data Block Wizard, the block's Query Data Source Columns property is automatically populated with column definition entries corresponding to the columns of the base table.
I tried making changes to these entries, for example by changing the data types to wrong data types or even deleting them, and I found that those changes had no effect on the block at all. The form was still working as I wanted.
What is exactly the role of the block's Query Data Source Columns property.
The F1 key help says "The Query Data Source Columns property is valid only when the Query Data Source Type property is set to Table, Sub-query, or Procedure". So, explain in each context of Query Data Source Type.
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.
