Extraction of data from three tables.

Hi all

I have three tables company (com_id (PK), com_name),
contact (contact_id (PK), com_id (FK), first_name, email),
Rental (loc_id (PK), com_id (FK), Country).

I need a query to extract the first name, the e-mail, the com_name and the country.

I used:
Select contact.first_name, m.country, company.com_name, contact.email in contact
LEFT JOIN place m ON contact.com_id = m.com_id
Contact.com_id = c.com_id ON LEFT JOIN c company

but his return lines in double.

I'm new on this. Please tell me how to solve this problem.

Thank you

Sophie wrote:
Hi all

I have three tables company (com_id (PK), com_name),
contact (contact_id (PK), com_id (FK), first_name, email),
Rental (loc_id (PK), com_id (FK), Country).

I need a query to extract the first name, the e-mail, the com_name and the country.

I used:
Select contact.first_name, m.country, company.com_name, contact.email in contact
LEFT JOIN place m ON contact.com_id = m.com_id
Contact.com_id = c.com_id ON LEFT JOIN c company

but his return lines in double.

I'm new on this. Please tell me how to solve this problem.

Thank you

Hello

select
    b.first_name,
    b.email,
    a.com_name,
    c.country
from
    company a,
    contact   b,
    loaction   c
where
    a.com_id=b.com_id
    and
    a.com_id=c.com_id;

Thanks in advance.

Tags: Database

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for example. There are two table A and B.
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Update on the table by extracting the data from the table even under certain conditions

Hi Experts,
I have the table EMP which currently has 6 entries.
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1 FEBRUARY 10 PROD 84 Y IND123 ABC
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For the above two lines, I need to update the status of DEF. How to select this criterion and update in the same query?
Currently, I used the query to select the minimum BATCH_NO for each of the EMP_SYS below.
SELECT EMP_SYS, BATCH_NO, JOIN_DATE, FLAG, LOGIN_ID, STATUS
Of
(
EMP_SYS, BATCH_NO, JOIN_DATE, FLAG, LOGIN_ID, STATUS, SELECT ROW_NUMBER)
COURSE NR (PARTITION BY ORDER OF EMP_SYS OF EMP_SYS)
FROM EMP
WHEN STATUS = 'ABC' AND FLAG = "Y".
)
WHERE
NR = 1;
If I try to use the update on the above query statement... It updates every 6 rows instead of 2 rows.
Please suggest me a way to update only the two lines that has the minimum BATCH_NO for each of the EMP_SYS.

But is possible to write the query without using the Group of?

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set STATUS = "DEF".

where BATCH_NO = (select min (BATCH_NO) from EMP I where STATUS = 'ABC' AND FLAG = 'Y' and i.emp_sys = e.emp_sys)

extract data from a table to a text file

I need to extract data from a table to a text file, I twist my output is the following...

bash-3. $00 vi tap3roamercosts_20110915144318.txt
lines of 'tap3roamercosts_20110915144318.txt' 393948, 23464348 characters
^ LAFGTD | N | 2011090203000001 | 13242514000064 | 1. 0 | 20. 41220 | 02-SEVEN.-11. 01-SEPT.-11. 0 | 13244
755. 64. 70. 0093794428588 | 0093796234547 | 0 | S2 | E | 412200306902634 | 8. 1. 61500 | 16081 |
| HW | Call to the Roamer. 0 | I have | Roaming billing Inroamer Plan | 1_0_1 | LKA | N_I_Independent
the time of day. Rate of Roamer SMST systems | AFGTD20110902030000010001013242514000064 |
|||||||||||||||||||||

AFGTD | N | 2011090203000001 | 13242612000044 | 1. 0 | 20. 41220 | 02-SEVEN.-11. 01-SEPT.-11. 0 | 13244
853. 44. 70. 234. 0093793252818 | 0 | S2 | E | 412200303198150 | 8. 1. 61000 | 12403 | HW | -Ro
bitter call | 0 | I have | Roaming billing Inroamer Plan | 1_0_1 | N_I_Independent time of Da
There | Rate of Roamer SMST systems | AFGTD20110902030000010001013242612000044 |
||||||||

AFGTD | N | 2011090203000001 | 13242612000047 | 1. 0 | 20. 41220 | 02-SEVEN.-11. 01-SEPT.-11. 0 | 13244
853. 47. 70. 234. 0093793252818 | 0 | S2 | E | 412200303198150 | 8. 1. 61000 | 12403 | HW | -Ro
bitter call | 0 | I have | Roaming billing Inroamer Plan | 1_0_1 | N_I_Independent time of Da
There | Rate of Roamer SMST systems | AFGTD20110902030000010001013242612000047 |
||||||||
.
.
.
.
.

Please help me how to format my output each record in simple lines in oracle sqlplus. Here are the settings I used...

TERMOUT OFF SET;
SET ECHO OFF;
SET LINESIZE 100000;
THE VALUE OF NEWPAGE 0;
SET SPACE 0;
SET PAGESIZE 50000;
SET FEEDBACK OFF;
SET THE OFF POSITION;
SET TRIMSPOOL
SET THE TAB

And what was wrong with the answers that you have on your previous thread?

How to extract data in a text file

Please do not ask the same question again. If there is a problem with the answers provided, then continue on the same thread that tell people what is the problem.

Saying that, this is another possibility for you...

As user sys:

CREATE OR REPLACE DIRECTORY TEST_DIR AS '\tmp\myfiles'
/
GRANT READ, WRITE ON DIRECTORY TEST_DIR TO myuser
/

As myuser:

CREATE OR REPLACE PROCEDURE run_query(p_sql IN VARCHAR2
                                     ,p_dir IN VARCHAR2
                                     ,p_header_file IN VARCHAR2
                                     ,p_data_file IN VARCHAR2 := NULL) IS
  v_finaltxt  VARCHAR2(4000);
  v_v_val     VARCHAR2(4000);
  v_n_val     NUMBER;
  v_d_val     DATE;
  v_ret       NUMBER;
  c           NUMBER;
  d           NUMBER;
  col_cnt     INTEGER;
  f           BOOLEAN;
  rec_tab     DBMS_SQL.DESC_TAB;
  col_num     NUMBER;
  v_fh        UTL_FILE.FILE_TYPE;
  v_samefile  BOOLEAN := (NVL(p_data_file,p_header_file) = p_header_file);
BEGIN
  c := DBMS_SQL.OPEN_CURSOR;
  DBMS_SQL.PARSE(c, p_sql, DBMS_SQL.NATIVE);
  d := DBMS_SQL.EXECUTE(c);
  DBMS_SQL.DESCRIBE_COLUMNS(c, col_cnt, rec_tab);
  FOR j in 1..col_cnt
  LOOP
    CASE rec_tab(j).col_type
      WHEN 1 THEN DBMS_SQL.DEFINE_COLUMN(c,j,v_v_val,2000);
      WHEN 2 THEN DBMS_SQL.DEFINE_COLUMN(c,j,v_n_val);
      WHEN 12 THEN DBMS_SQL.DEFINE_COLUMN(c,j,v_d_val);
    ELSE
      DBMS_SQL.DEFINE_COLUMN(c,j,v_v_val,2000);
    END CASE;
  END LOOP;
  -- This part outputs the HEADER
  v_fh := UTL_FILE.FOPEN(upper(p_dir),p_header_file,'w',32767);
  FOR j in 1..col_cnt
  LOOP
    v_finaltxt := ltrim(v_finaltxt||','||lower(rec_tab(j).col_name),',');
  END LOOP;
  --  DBMS_OUTPUT.PUT_LINE(v_finaltxt);
  UTL_FILE.PUT_LINE(v_fh, v_finaltxt);
  IF NOT v_samefile THEN
    UTL_FILE.FCLOSE(v_fh);
  END IF;
  --
  -- This part outputs the DATA
  IF NOT v_samefile THEN
    v_fh := UTL_FILE.FOPEN(upper(p_dir),p_data_file,'w',32767);
  END IF;
  LOOP
    v_ret := DBMS_SQL.FETCH_ROWS(c);
    EXIT WHEN v_ret = 0;
    v_finaltxt := NULL;
    FOR j in 1..col_cnt
    LOOP
      CASE rec_tab(j).col_type
        WHEN 1 THEN DBMS_SQL.COLUMN_VALUE(c,j,v_v_val);
                    v_finaltxt := ltrim(v_finaltxt||',"'||v_v_val||'"',',');
        WHEN 2 THEN DBMS_SQL.COLUMN_VALUE(c,j,v_n_val);
                    v_finaltxt := ltrim(v_finaltxt||','||v_n_val,',');
        WHEN 12 THEN DBMS_SQL.COLUMN_VALUE(c,j,v_d_val);
                    v_finaltxt := ltrim(v_finaltxt||','||to_char(v_d_val,'DD/MM/YYYY HH24:MI:SS'),',');
      ELSE
        v_finaltxt := ltrim(v_finaltxt||',"'||v_v_val||'"',',');
      END CASE;
    END LOOP;
  --  DBMS_OUTPUT.PUT_LINE(v_finaltxt);
    UTL_FILE.PUT_LINE(v_fh, v_finaltxt);
  END LOOP;
  UTL_FILE.FCLOSE(v_fh);
  DBMS_SQL.CLOSE_CURSOR(c);
END;

This allows the header line and the data to write into files separate if necessary.

for example

SQL> exec run_query('select * from emp','TEST_DIR','output.txt');

PL/SQL procedure successfully completed.

Output.txt file contains:

empno,ename,job,mgr,hiredate,sal,comm,deptno
7369,"SMITH","CLERK",7902,17/12/1980 00:00:00,800,,20
7499,"ALLEN","SALESMAN",7698,20/02/1981 00:00:00,1600,300,30
7521,"WARD","SALESMAN",7698,22/02/1981 00:00:00,1250,500,30
7566,"JONES","MANAGER",7839,02/04/1981 00:00:00,2975,,20
7654,"MARTIN","SALESMAN",7698,28/09/1981 00:00:00,1250,1400,30
7698,"BLAKE","MANAGER",7839,01/05/1981 00:00:00,2850,,30
7782,"CLARK","MANAGER",7839,09/06/1981 00:00:00,2450,,10
7788,"SCOTT","ANALYST",7566,19/04/1987 00:00:00,3000,,20
7839,"KING","PRESIDENT",,17/11/1981 00:00:00,5000,,10
7844,"TURNER","SALESMAN",7698,08/09/1981 00:00:00,1500,0,30
7876,"ADAMS","CLERK",7788,23/05/1987 00:00:00,1100,,20
7900,"JAMES","CLERK",7698,03/12/1981 00:00:00,950,,30
7902,"FORD","ANALYST",7566,03/12/1981 00:00:00,3000,,20
7934,"MILLER","CLERK",7782,23/01/1982 00:00:00,1300,,10

The procedure allows for the header and the data to separate files if necessary. Just by specifying the file name "header" will put the header and the data in a single file.

Adapt to the exit of styles and different types of data are needed.

Migration of data from a table to another table
have a table1 that includes the existing data in the format.

~@!%~X1~@!%~Y1 in three different coulmns

creates a new empty table and the need to migrate the data above, which is present in 3 different columns in a column in the new table, as shown in the example below.

table 1 existing data (| separator of columns for formatting)
------------------------------------------------------------------------------------------------------------------------------------
ID name1 | Name2. Name3
123 ~@!%~X1~@!%~Y1 | ~@!%~X2~@!%~Y2 | ~@!%~X3~@!%~Y3
234 ~@!%~X4~@!%~Y4 | ~@!%~X5~@!%~Y5 | ~@!%~X6~@!%~Y6
456 ~@!%~X7~@!%~Y7 | ~@!%~X8~@!%~Y8 | ~@!%~X9~@!%~Y9

Table 2, which will initially be empty and after migration, it should look as follows.

ID name1
----------------------------------------------------------------------------------------------------------------------------
123 ~@!%~X1~@!%~Y1 & & ~@!%~X2~@!%~Y2 & & ~@!%~X2~@!%~Y2
234 ~@!%~X4~@!%~Y4 & & ~@!%~X5~@!%~Y5 & & ~@!%~X6~@!%~Y6
456 ~@!%~X7~@!%~Y7 & & ~@!%~X7~@!%~Y7 & & ~@!%~X7~@!%~Y7

as shown in the example above

Name1 column has ~@!%~X1~@!%~Y1
Column name2 has ~@!%~X2~@!%~Y2
Name3 column has ~@!%~X3~@!%~Y3

Once the data is migrating from table 1 for id - 123 looks like below, before joining data from 3 tables, I need apopend & & for each for the token I read of the tabl1 of name1 to end ii should be added "& &" also when I read the name2 I add "& &" at the end of the string before the concatination.

Here's the sample that deals with data for id - 123 with & & (only & & other symbols are part of the data)

~@!%~X1~@!%~Y1 & & ~@!%~X2~@!%~Y2 & & ~@!%~X2~@!%~Y2

need help in writing a note of migate

Published by: [email protected] on April 2, 2010 15:42
Hello

You are looking for something like this
```
CREATE TABLE table_new
AS
   (SELECT id, name1 || '&&' || name2 || '&&' || name3 name1
    FROM table1);
```
or if you have the table ready
```
INSERT INTO table_new
   (SELECT id, name1 || '&&' || name2 || '&&' || name3 name1
    FROM table1);
```
Thank you

Alen

data from 3 tables with later dates
Hello
Need help with the PL/SQL code, I need to write a code that will get the data from 3 tables with the most recent date.

For an individual ACT_CODE the output of the SQL query should display the data including the last dates back to 3 tables, if there is no
Date of the table, it should show the remaining data (think that the left join will do here)

Names of tables:
Institution_UPDT aiu
AC ASQ_CONTACT
GR_AUTHORIZE gr

All 3 tables have ACT_Code in common

Column names

INSTITUTION_UPDT IAU - IAU. ACT_CODE, AIU.project_id as proj, IAU. UPDT_TYPE_ID, IAU. User_id, IAU. UPDT_DATE

ASQ_CONTACT ac - ac. ACT_CODE as contact_code, ac.project_id, ac.first_name, ac.middle_initial, ac.last_
Name, AC.title, AC. Status, AC.status_date

GR_AUTHORIZE gr - GR ACT_CODE as grad_code, gr.name, gr.title AS grad_title, gr.submit_date

Are the names of the columns date
AC.status_date,
IAU. UPDT_DATE and
Gr.submit_date

Thanks to you all
appreciate your help

Jesh
Hi, Ngoumba,

If a given ACT_Code couldn't miss from any of the tables, then you will use better full outer joins, not a join left outer.

Perhaps it would be more effective to make a UNION of the three tables, then rotate the results in three datecolumns.

You can use the GROUP BY aggregation to get the last date for each ACT_Code in each table.
If you need other columns in the row which is the last date, you can use the ROW_NUMBER analytic function, like this:
```
SELECT  ACT_Code
,     updt_date
,     ROW_NUMBER () OVER ( PARTITION BY  ACT_Code
                          ORDER BY          updt_date     DESC
                  ) AS r_num
FROM    institution_updt
```
The lines with r_num = 1 are the most recent

This is a technique of ot the UNION-PIVOT example:
```
WITH     union_data     AS
(
     SELECT    ACT_Code
     ,       MAX (updt_date)     AS last_date
     ,       1                  AS table_id
     FROM       institution_updt
     GROUP BY  ACT_Code
UNION ALL
     SELECT    ACT_Code
     ,       MAX (status_date)     AS last_date
     ,       2                  AS table_id
     FROM       ASQ_Contact
     GROUP BY  ACT_Code
UNION ALL
     SELECT    ACT_Code
     ,       MAX (submit_date)     AS last_date
     ,       3                  AS table_id
     FROM       GR_Authorize
     GROUP BY  ACT_Code
)
SELECT       ACT_Code
,       MAX (CASE WHEN table_id = 1 THEN last_date END)     AS aiu_updt_date
,       MAX (CASE WHEN table_id = 2 THEN last_date END)     AS ac_status_date
,       MAX (CASE WHEN table_id = 3 THEN last_date END)     AS gr_submit_date
FROM       union_data
GROUP BY  ACT_Code
ORDER BY  ACT_Code
;
```
Published by: Frank Kulash, on September 16, 2009 15:02
Added UNION-pivot example

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Extracting the data from QVariantMap

I have the following data :

QVariant (QVariantMap, QMap ((' data', QVariant (QVariantMap, QMap ((' current_condition', QVariant (QVariantList, ((QVariantMap, QMap... QVariant QVariant (QVariantMap, QMap ((' weather', QVariant (QVariantList, ((QVariantMap, QMap... QVariant QVariant (QVariantMap, QMap ((' weather_desc', QVariant (QVariantList, ((QVariantMap, QMap... QVariant

m_model-> insert(data.value() .value ("data") .toMap ().value("weather").toList () .at (0) .toMap ());

Using the above line, I am able to extract relevant data from "current_condition and"weather".

What should I add to the line above to also extract data from 'weather_desc '?

Any help would be appreciated. Thank you.

Thank you! It is much easier to read when formatted, it's the first thing I did.

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        "windspeedMiles": "13"
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}

To access weatherDesc in usage by time:

Data.value.value("data").toMap ().value("weather").toList () .at (0) .toMap ().value("weatherDesc").toList () .at (0) .toMap .value ("value") ())

This will return "Sunny."

For readability, I suggest if this string to:

QMap  dataMap = data.value().value("data").toMap();

QList weatherList = dataMap..value("weather").toList();

QVariant firstWeatherEntry = weatherList.at(0);

QMap weatherEntryMap = firstWeatherEntry.toMap();

QList weatherDescList =
weatherEntryMap.value("weatherDesc").toList();

QVariant firstWeatherDescEntry = weatherDescList.at(0);

QMap weatherDescEntryMap = firstWeatherDescEntry.toMap();

QString value = weatherDescEntryMap.value("value").toString(); // "Sunny"

Also, you can check intermediate outcomes at each stage by calling

qDebug()< weatherlist="">< "\n";="" and="" so="">

Hi, after all stages of extraction of data from oracle to oracle during the execution of command "start extract ext1" his error giving the Manager does not work, can you please help me. Thank you

Hi, after all stages of extraction of data from oracle to oracle during the execution of command "start extract ext1" his error giving this handler does not run both source and target, can you please help me. Thank you

Hello

The setting should be as below, and not only the port number should be...

PORT 7809

Kind regards

Veera

How to export data from the table with the colouring of cells according to value.

Hi all
I use jdeveloper 11.1.1.6
I want to export data from the table with a lot of formatting. as for color cells based on value and so much. How to do this?

You can find us apache POI-http://poi.apache.org/

See this http://www.techartifact.com/blogs/2013/08/generate-excel-file-in-oracle-adf-using-apache-poi.html

Is it possible to see/get the data from the table to a dump file

I have files dmp generated using expdp on oracle 11 g...
expdp_schemas_18MAY2013_1.dmp
expdp_schemas_18MAY2013_2.dmp
expdp_schemas_18MAY2013_3.dmp
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VI test1.par
USERID = "/ as sysdba".
DIRECTORY = DATA
dumpfile=expdp_schemas_18MAY2013%S.dmp
SCHEMAS = USER1, USER2
LOGFILE = user_dump_data.log
SQLFILE = user_dump_data. SQL
and impdp parfile = test1.par.

No,

DataPump cannot retrieve a dumpfile data in a flat file.

Dean

Inserting data from one table to another table
Hello

I have the following SQL where I am updating a table by adding new data from another table, but without success.

INSERT INTO
() TOP_PROSPECTS
COMMON_ID
DATE_ADDED
REVIEW_RANK
EVAL_DATE
PM_ASSIGN
WHY_NOTES)
SELECT
t.COMMON_ID
t.DATE_ADDED
t.REVIEW_RANK
t.EVAL_DATE
t.PM_ASSIGN
t.WHY_NOTES
Of
TEMP_IVAN_MARY t
WHERE
COMMON_ID <>t.COMMON_ID

Any suggestions?

Thank you.

Published by: user13822709 on August 14, 2012 09:14

Published by: user13822709 on August 14, 2012 09:15
Is that what you're trying to do with the insert. I think there may be a sign {noformat}<{noformat}{noformat}>{noformat} missing in the where clause. This site eat those, so you need to use the equivalent! = post here.

If I'm wrong about the missing trader, then it looks like you want to insert rows in temp_ivan_mary that are not already in top_prospects. If Yes, then you need something like:
```
insert into top_prospects
   (common_id, date_added, review_rank, eval_date, pm_assign,
    why_notes)
select t.common_id, t.date_added, t.review_rank, t.eval_date,
       t.pm_assign, t.why_notes
from temp_ivan_mary t
where t.common_id not in (select common_id from top_prospects
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```
Function index and data available volumnes etc. then a mergr can be more effective. Something like:
```
merge into top_prospects p
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                 pm_assign, why_notes
          from temp_ivan_mary) t
   on (p.common_id = t.common_id)
   when not matched then
      insert (common_id, date_added, review_rank, eval_date, pm_assign,
              why_notes)
      values (t.common_id, t.date_added, t.review_rank, t.eval_date,
              t.pm_assign, t.why_notes)
from temp_ivan_mary t
```
John

Export data from the table
Hello. Is it possible to export data from a table in Oracle using SQL Loader? If Yes, can you tell a good examples?
Hello

Hello. Is it possible to export data from a table in Oracle using SQL Loader?

No, with SQL * Loader, you can load data from external files into tables not export.

coil c:\temp\empdata.txt
sqlplus abc.sql (assumes that abc.sql runs select * from emp)
spool off

It cannot work like this, because the declaration of the COIL is not recognized outside the SQL * Plus the term.

But, you can include the statement of the COIL in abc.sql like this:
```
spool c:\temp\empdata.txt
select * from emp;
spool off
```
Then, you just have to run the SQL script as follows:
```
sqlplus  @abc.sql 
```
However, I advise you to use Oracle SQL Developer, this is a free tool and with it you can export a Table in several types of format (html, xml, csv, xls,...).

Please find attached a link to this tool:

http://www.Oracle.com/technetwork/developer-tools/SQL-Developer/Overview/index.html

Hope this helps.
Best regards
Jean Valentine

How can I insert data from another table into a table containing a timestamp column
How you insert data from another table in a table if the target table contains a timestamp column. I tried to set the default value of GETDATE() column in the target table, but it does not work.

I use MS SQL
Sorry, I managed to get around this by inserting null as the value

Extraction of data from three tables.

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