SQL & PL/SQL :: Swap Values Between Columns Across Tables In Database
Jan 28, 2011
I've recieved a recent request wherein the requirement is to swap values between columns across multiple tables in a database.Following is a visual sample of what needs to be done.
Before Swaping:
Columns Values
TABLE1.IDENTIFIER MRN123
TABLE1.MEDICARENO CHI1234567
TABLE2.MRN MRN123
TABLE3.MRN MRN123
OTHERTABLE.MRN MRN123
After Swapping:
Columns Values
TABLE1.IDENTIFIER CHI1234567
TABLE1.MEDICARENO MRN123
TABLE2.MRN CHI1234567
TABLE3.MRN CHI1234567
OTHERTABLE.MRN CHI1234567
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Nov 29, 2011
how to swap two values without using any other variable?
example:
v_a varchar2(10):=INDIAN;
v_b varchar2(10):='PHOTON';
so,how to swap these two values..
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Aug 4, 2011
i want a query/function/procedure to check recently updated columns/tables in a database...
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Jul 1, 2013
I have 3 tables in the Oracle database( emp, employee, emp1) which has following record values in it.
empidenamejob
7369, 'SMITH', 'CLERK'
I would like to list these 3 tables thru SQL/PLSQL, having the above record values combination. Also, the name of the columns could be different in all the tables i.e. name could be 'ename' in Emp table , and 'name' in Employee table. Is there way to do this in SQL or PLSQL ?
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Dec 23, 2010
My scenario is to insert values into 'out' column by comparing 's' and 'IP' columns of temp table.The exact situation is at first need to go to ip column,take a value and then go to source column and check for the same value of ip which is taken previously.Then after corresponding ip of that source column should be inserted back in previous source column.
The situation is marked clearly in file which i am attaching with '--' comments at respective places.I am also pasting the code which i tried out,unfortunately it is giving error as exact fetch returns more than requested number of rows since there are duplicates in the table.I tried it using nested for loops.Also implemented using rowid,but it didnt work.
fixing the errors or if there is any new logic that can be implemented.
DECLARE
i_e NUMBER(10);
BEGIN
FOR cur_1 IN(SELECT IP from temp where IP IS NOT NULL)
LOOP
FOR cur_2 IN(SELECT IP from temp where s=cur_1.IP)
[Code]...
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Jul 25, 2013
From two given tables, how do you fetch the values from two columns using values from one column(get values from col.A if col.A is not null and get values from col.B if col.A is null)?
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Sep 28, 2012
We are using partition exchnage to swap individual partitions into table which then backed up.
This being done one partition at a time.
Is it possible to swap several partitions of a tabel in one go.
using Oracle 11.2.0.3
partioned by date, one partition of reach day.
Is it possible say to move the last 7 days partitions into the other table for backup using partition exchange?
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Nov 8, 2010
I got the below message in trace file. What does the line "swap info: free = 0.00M alloc = 0.00M total = 0.00M" trying to say?
I have
RAM=1.5G
Swap=3.5G
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production With the Partitioning, OLAP and Data Mining options ORACLE_HOME = /home/oracle
System name:Linux
Node name:linuxdev
Release:2.6.5-7.97-default
Version:#1 Fri Jul 2 14:21:59 UTC 2004
[Code]....
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Dec 20, 2012
I have a need to make name field stored as "FirstName MI LastName" become "LastName, FirstName". How to do this in a select statement. Because of the application I will be running this in (DataStage), at this point in the flow, I am unable to call a stored procedure.
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Dec 17, 2010
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.
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Dec 20, 2012
I need to add values of one column values from a table to another table each value as a column. Below i am considering only for 3 values in real time i have more than 50 values
CREATE TABLE TEST_REG ( VAL VARCHAR2(1));
INSERT INTO TEST_REG VALUES ('A');
INSERT INTO TEST_REG VALUES ('B');
INSERT INTO TEST_REG VALUES ('C');
CREATE TABLE TEST_HOLD ( COL1 VARCHAR2(1),COL2 VARCHAR2(1),COL3 VARCHAR2(1)); -- in realtime i have 100 columns
Now i need the output as:
when i
select * from test_hold;
COL1 COL2 COL3
A B C
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Apr 25, 2011
How to find the duplicate values in two columns.
Suppose we have two columns A and B and the data looks like this
A B
--- ---
1 One
2 Two
1 One
2 Two
3 Three
I need to write a query in such a way that i should find out the duplicate values which are repeating.
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Sep 3, 2010
I want to get the values and put them into html template since i want to configure mime settings. My table's name is rawticket_voip and it has 150.000rows and 20 columns so instead of COL1, COL2 what should i write there? How can i get the spesific row's and column's value and how can integrate loops in this html?
'<html>
<table border="1">
<tr bgcolor="Light Blue">
<td>COL1</td>
<td>COL2</td>
[Code]...
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Sep 6, 2012
I have a row which contains 6 columns where I want that data to be shown in the form of columns as shown here:
From:
select item1, item2, item3, amt1, amt2, amt3 from item_table where sno=1; <----- returns 1 row as below
ITEM1 ITEM2 ITEM3 AMT1 AMT2 AMT3
---------- ------------ ------------- ----------- ------------ ----------
AAA BBB CCC 10.00 20.00 15.00
Data explanation: item1's (AAA) price is amt1 (10.00), item2's (BBB) price is amt2 (20.00) and item3's (CCC) price is amt3 (15.00). OK.
Now I want that data to convert into columns as shown here:
To:
ITEMS AMT
--------- ---------
AAA 10.00
BBB 20.00
CCC 30.00
I want a SQL to display this data.
I found one query which converts a row into columns, but this does not serve my requirement: [for your reference only]
SQL> select substr( the_string
, decode( level, 1, 1, instr(the_string,',',1,level-1)+1)
, decode( instr(the_string,',',1,level), 0, length(the_string), instr(the_string,',',1,level) - decode( level, 1, 0, instr(the_string,',',1,level-1))-1)
) the_value
from ( select (select item1||','||item2||','|| item3 from item_table where sno=1) ITEMS
from DUAL)
connect by level <= length(the_string)-length(replace(the_string,','))+1
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Oct 25, 2010
I have to compare 2 tables on a columns's value.The 2 tables have same column as Regn_no.I just need to have the result in True Or False from a Query if the particular value of Regn_no is found in both the tables.
Temporarily I using a bit different and not good query which is as follows:
select count(*) from tab1 where regn_no in (select regn_no from tab2) and regn_no = 'UP78AN7890';
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Apr 14, 2011
i wanted the query for the followin example
sample1
A B C D E F
--------------------------
1 1 1 1 1 1
2 2 2 2 2 2
3 3 3 3 3 3
4 4 4 4 4 4
5 5 5 5 5 5
sample2
G H I J
----------------
1 1 1 1
2 2 2 2
3 3 3 3
4 4 4 4
5 5 5 5
consider the above tables what i want is some thing like this
output
G H I J A
-----------------
this can also be done through a select statement through choosing the columns which you want i don want thatbut what i want is columns of entire table sample2 and only one column in sample1
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Feb 20, 2012
I have a normal table like step 1 and I want to get a output like step 2. get the output from Columns to row in simple sql.
Step 1)
Table Name: Rat_table
------------------------------------------
Column : year and rating_name
year rating_name
------ -----------
2011 'Sucessful'
2010 'Not Rated'
Step 2)
Table Name: Rat_table
------------------------------------------
rating_name 'Sucessful' 'Not Rated'
year 2011 2010
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Oct 19, 2010
My tables looks like this:
Desc Table A (account)
Account1_id
Account2_id
name,
empid
Table B (Bill )
BillNo
Advertiserid
agencyid
total vvalue
I need to pick up total value from table B where the unique combination of advertiser-Agency id is the same as the given account1_id -Account2_id combination in table A for each employee id.
In other words my output should be like
Empid | Account_id (should be same as advertiserid)| Account2_id (same as agencyid) | sum(total_value) for this adv-agency combination.....
objective: Get the total value from table B for each unique account1-account2 combination (advertiser-agency in other words) .
I am not sure if I should use a correlated subquery or how to handle the situation....Right now I am just checking the two columns separately like this:
select.......from a,b
where b.advertiser_id = a.account1_id and b.agencyid = b.account2id
Is it correct to do so? I have a feeling that I am missing something if I join them separately like this.
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Jan 11, 2013
I need a query to find list all tables in a schema which does not have 'ADDRESS', 'CITY', 'STATE' columns.
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Nov 16, 2012
I am trying to get information about the columns of tables in Oracle databases. In MySQL, show columns provides good deal of information.But in Oracle, we do not have such equivalent call."describe" shows only the primary key.
But it does not show whether any column has unique constraint or an index.
I created a column in a table with unique constraint (but not a primary key), but it was not listed with CONSTRAINT_TYPE = 'U' in dba_constraints view, but was listed with CONSTRAINT_TYPE = 'C' - Check constraint.
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Nov 18, 2012
I have a requirement to execute the query only once for all the columns mapped to a particular table. Lets take an example..
table t1 has the following columns mapping.
col1 col2 col3 col4
variable 1 table abc col1_abc ----
variable 2 table abc col2_abc ----
variable 3 table xyz col1_xyz ----
variable 4 table xyz col2_xyz ----
variable 5 table xyz col3_xyz ----
variable 6 table xyz col4_xyz ----
In col4 , we have to update the values of col3 (column) ... it is very easy to update the values by executing the query for each column but my requirement is ... I want to execute the query once for a table ( example select col1_abc,col2_abc from table_abc ... this will return always a single value after adding other conditions in where clause) and why I want to do this? .. because there can be multiple (might be 30 variables values)
from a single table.
I have converted the columns into rows by using listagg function now I have lets a dynamic query ( for the above example).
for i in 1.2
loop
l_query := ' select col1_abc, col2_abc from table_abc';
open c1 for l_query;
end loop;
my problem is : how to hold these values and update the above table?
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Aug 5, 2013
I am trying a pl/sql block which which take a string and execute it dynamically. Suppose below is string
M_COL := Q'[(P_CODE=> ':DEPTNO',P_CODE_TYPE => 'STATE')]';
Now trying to execute it. using below
M_STR := 'SELECT CHK_DEPT' || M_COL || ' FROM EMP WHERE EMPNO=''7499''';
EXECUTE IMMEDIATE M_STR
INTO M_DATE;
Now what i want is M_STR vairable to executed as
SELECT CHK_DEPT(P_CODE=> DEPTNO,P_CODE_TYPE => 'STATE') FROM EMP WHERE EMPNO='7499'
instead of
SELECT CHK_DEPT(P_CODE=> 'DEPTNO',P_CODE_TYPE => 'STATE') FROM EMP WHERE EMPNO='7499'
other in other way in parameter P_CODE Column value of DEPTNO should be passed.Also note that DEPTNO column in string M_COL is Dynamic.i.e
M_COL := Q'[(P_CODE=> ':DEPTID',P_CODE_TYPE => 'STATE')]'; OR
M_COL := Q'[(P_CODE=> ':EMP_ID',P_CODE_TYPE => 'STATE')]';
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Mar 14, 2011
I have a large table with 450 column and we are only using nearly 170 columns and our BD block size is 8k.The DBA informed that there is an row chaining happening in the Database.My question is if we have data available in 170 column .why row chaining is happening.
The DBA informed us to remove the unnecessary columns .. Does those empty columns have any impact on the chaining.If we increase the size of DB block to 32k . does it will resolve the issue.
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Jan 25, 2013
im trying to select columns from different tables dynamically in a function . The parameter for the function will be table name and column id's, In this number of columns may vary . Is it possible to have dynamic %rowtype to store the cursor value in it.
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Oct 22, 2012
query to find out common data from 2 columns in two different tables??
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Sep 6, 2013
I am trying to update multiple columns from one table based on the results of another table So I have 3 tables as follows
HISTORYSUMM_SNAPADM_CHOICE
My SQL code is loosely SELECT SUM(H.HIS1),
SS.SNAP1,
AC.ADM1FROMHISTORY H,
SUMM_SNAP SS,ADM_CHOICE ACWHERE H.HIS2=SS.SNAP2AND SS.SNAP3=AC.ADM2GROUP BY SS.SNAP1,
AC.ADM1
This works, and I am able to SUM the column as I need with the right numbers. I altered the SUMM_SNAP table and now I want this summarized column to be in the table I tried using UPDATE, but there is no FROM clause to let me do the table join/group by
UPDATE SUMM_SNAPSET SUMM_SNAP.SNAP3=SUM(H.HIS1)FROMHISTORY H,
SUMM_SNAP SS,ADM_CHOICE AC
WHERE H.HIS2=SS.SNAP2AND SS.SNAP3=AC.ADM2
GROUP BY SS.SNAP1, AC.ADM1
The above is obviously wrong - but just trying to show whatI was thinking What would be the best method to get the numbers from the SUM into a table?
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Mar 7, 2012
I am working on a form having three data blocks
Travel_Inconvineance (Master)
TI_Card_Info (Detail)
TI_Limit_Indemnity (Detail)
On working TI_Card_Info i have 2 columns Plastic_Card_Id and Plastic_Card_Type which i want to be paste on TI_limit_Indemnity data block as i enter in TI_Card_Info.
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Jul 31, 2013
how to assign values from a "rule table" to a rowtype-variable. The ruletable contains values for different columns in different tables.Now i need to assign those given values for given columns out of that rule table to the equivalent column in a rowtype-variable.
CREATE TABLE TBRULES
(
TABLE VARCHAR2(50 BYTE)
, COLUMN VARCHAR2(50 BYTE)
, VALUE VARCHAR2(200 BYTE)
);
[code].....
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Apr 8, 2010
i have two tables test1 and test2. i want to update the column(DEPT_DSCR) of both the tables TEST1 and TEST2 using select for update and current of...using cursor.
I have a code written as follows :
DECLARE
v_mydept1 TEST1.DEPT_CD%TYPE;
v_mydept2 TEST2.DEPT_CD%TYPE;
CURSOR C1 IS SELECT TEST1.DEPT_CD,TEST2.DEPT_CD FROM TEST1,TEST2 WHERE TEST1.DEPT_CD = TEST2.DEPT_CD AND TEST1.DEPT_CD = 'AA' FOR UPDATE OF TEST1.DEPT_DSCR,TEST2.DEPT_DSCR;
[code].......
The above code when run says that it runs successfully. But it does not updates the desired columns[DEPT_DSCR].
It only works when we want to update single or multiple columns of same table...i.e. by providing these columns after "FOR UPDATE OF"
I am not sure what is the exact problem when we want to update multiple columns of different tables.
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Aug 29, 2011
I have a scenario to frame an xml as below, below i have given a sample data
Create table xml_type
(msg varchar2(1000),
desp varchar2(1000),
val number) ;
[Code]....
Actually i need the output as below, i tried and succeeded doing it in Procedure , but they are asking me to do it in SQL query. How to get from an sql query.
<DETAIL>
<ERROR> 'Invalid Name ID' </ERROR>
<ID> 'Name ID' </ID>
<VALUE> 6 </VALUE>
<VALUE> 7 </VALUE>
<VALUE> 8 </VALUE>
</DETAIL>
[Code]...
Or i was planning to get the values as below with two columns and pass it to informatica to frame the XML.
Col1 Col2
Invalid Name Id Error
Name ID ID
6 Value
7 Value
8 Value
Invalid FAQ ID Error
FAQ Id ID
9 Value
10 Value
Let me know the best option and how to do this task.
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