MYSQL :: Copying Data Within A Table

Copying Data From One Table To Another
I have a mysql database named swg_db
in that database I have 2 tables, one named swg_user which contains the following fields: username, password, email

the second table is named vbb_user which contains the following fields: username, user_password, user_email

The data in table 1 in password and email is hosed, table 2 is not.

I am trying to figure out the right commands, in the right order, to compare usernames, if they are the same, copy the user_password data from table 2 into the password field in table 1 and to copy the data from the user_email field in table 2 into the email field on table 1.

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Copying Data Into Another Table?
Can someone please tell me how I can copy one item in one row into another table? I am wanting to do the above when a comment is being added to the second table. Thanks in advance.

My tables are like this:
Article (Articleid, selectDay, selectMonth, selectYear, article_item)
Users (Userid, username, password, email, ip)
Commentpost (Articleid, userid, comments, date_entered)

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Automatically Copying Data From One Table To Another
im working on a project for uni and basically i want to know if its possible for a table to automatically copy data from one table into itself (they are both in the same database)

i want to create a system where a user registers giving their password, i then want the username and password to be stored in a separate table where it is encrypted and when a user wants to login into the system i want their details to be checked against the details in the table where everything is encrypted.

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Copying Selected Data From Two Tables Into One Table
I have a list of members in my "members" table, and they can buy tickets for an event. When they buy them, their member id number and the ticket info is stored in the "transactions" table. For the final "tickets" table, which I want to print out to put on the door, I also need to have their email and name, which is in the "members" table but not the "transactions" table.

What I want to do is insert bits of the "transactions" table into the "tickets" table, and then also use the member id number from the "transactions" table to lift out the corresponding member name and email address and insert them in as well.

Here's what I tried before I realised that I probably need something quite a bit more complicated:

INSERT INTO tickets (SELECT transaction_id, ticket_member_id, ticket_code FROM transactions), (SELECT name, email FROM members WHERE member_id=ticket_member_id)

member_id is the one in the "members" table.

Basically, here's what I want the "tickets" table to look like (the columns):

transaction_id (from "transactions")
ticket_member_id (from "transactions")
ticket_code (from "transactions")
name (from "members" using ticket_member_id)
email (from "members" using ticket_member_id)

I think I need to use a while to iterate through everything but just thought I'd check in case there's an easy way.

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Taking Colomns Of Data And Copying It To A Different Table
I've got two pieces of software running and I want to force users to only use the one log in so I though rather than trying to build a plug in I thought a cron job would no-doubt be easier.

Now getting the data I want from the right table is easy enough for me but as the columns have different ID's I need to make it transpose it into the right columns... It runs but I suspect the second part of my code is failing. Code:

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Copying Data
I want to copy some columns in a table of a database to another table in different database. How can I do it?

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Copying Data To Server?
i have some database elsewhere than the server, and i'd like to use this db on the mysql system, but can i just copy some mysql databases to the server's data folder? (do i have to "create database..."?)

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Copying Data Folder
I've successfully copy out a database folder under mysql/data directory and put it in another server and it works fine. No need to know the previous admin password or what for the copied database.My question is. Is this normal with mysql? Or this is normal with all DMBS, which we can copy the data folder from one server and put it in another servery, bypassing all the user security, and successfully read the database with admin privilaged given by the second server?Or this is only happened with mysql, and not with other DBMS such as ms-sql and oracle.Is there anyway to prevent this from happening?

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Copying Column Names And Properties From An Existing Table To A New Table?
I've got a table with 42 columns, set to different types (string, datetime, date, integer). It has 8 million rows. I want to make a new table with the exact same columns, but with no data in it. Is there an easy way to do this without re-defining every column?

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Copying A Table With Everything?
i need an efficient way to copy an entire table, with indices and all the other info
contained in the current table. these tables are massive, some with over 350 million
rows so i need a way to do this in a reasonable amount of time.

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Copying Table
I'm trying to copy a table from one mysqld to another.

I've tried things like :

mysqldump -h remotehost --quick --single-transaction database table | mysql database

but I don't get all the data. It only copies 16789 rows when the original table has 10018090 rows.

I don't get any error messages or anything (that I've found).

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Copying A Table
Is there a way to copy an entire table's information to a new table in the same database?

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Copying One Table Into An Other
I have one table Bin0 containing data and one empty table Bin1. Now I want to move all entries from Bin0 to Bin1. Both table only have one column. What is the best way to do this?

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Copying A Table From One Schema To Another
Is it possible to copy a table from one schema to another schema by just
copying the frm file to the directory for the new schema?

What is the best way to create a new database with all the tables in it
automatically?

I was hoping to have the tables (the frm files) included in a subdirectory
and when required, just create a new schema then copy all the frm files into
it.

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Copying A Table Using PhpMyAdmin
2 phpbb boards I run have been hacked. One I've restored but the other one has had some damage to the MySQL db. A table is missing.

As it's a styles table I thought I could could copy a table, from a test board I set up, to the hacked board.

I tried this using phpMyAdmin and I get this error: ....

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Copying A Large Table
I need to copy a large table without locking the database.

So at the moment i have

Insert into newtable select * from oldtable.

This locks the database for 10 seconds which although doesn't sound like a lot of time is 2 much for what i need the database for!.

I have looked at these commands

FOR UPDATE.
LOCK IN SHARE MODE.
SQL_BUFFER_RESULT

But I am not quite sure if any of these actually perform what i would like to do.

The other option is to update the table line by line or in chunks using limit i suppose. But im sure there must be a better way.

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Copying One Column From One Table To Another
I have a table, let's call it Foo, with a column of type int(11), let's call it Crud. I want to overwrite Foo.Crud with Bar.Var. Var is also type int(11), and happens to contain 1's and 2's.

Of course I did my googling like a good newbie and got the following:

update Foo,Bar set Foo.Crud = Bar.Var;

This ran without error, but when I check it by running...

SELECT COUNT( * ) AS Rows, Crud FROM Foo GROUP BY Crud ORDER BY Crud;
+------+------+
| Rows | Crud |
+------+------+
| 8801 | 1 |
+------+------+

And it's NOT because Bar.Var only contains 1's. It contains 1's and 2's!

SELECT COUNT( * ) AS Rows, Var FROM Bar GROUP BY Var ORDER BY Var;
+------+------+
| Rows | Var |
+------+------+
| 5043 | 1 |
| 3758 | 2 |
+------+------+........

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Copying DB Table Definitions
I've been working on a MySql database project, and I will soon need to move to a different development machine. What is the best way to get all my tables set up identically on the new computer?

I'm hoping there is some way to get MySql to generate (for an existing table) the code that would create that table if it were not already present.

Right now the best solution I've found is going into MySql Query Browser and running a DESCRIBE command for each table. I can then right-click the resultset and export it to an html file. From each table's desription, I could easily re-create the tables on another machine.

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Copying A Column Within A Table II
I'm trying to copy a column (Open) from a table into another column (Close) from the same table but skipping the first "cell" from the source column (Open).

I tried the following query: UPDATE Table SET `Open`=`Close` WHERE `ID`="2";

The query copies the whole source column (Open) into the destination column (Close) including the "cell" I'm trying to skip.

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Copying Table To Disk During Execution
I seem to be having an issue with a query's results being paged out to
disk during runtime. I notice in processlist it saying "Copying to tmp
table on disk".

select col1, col2, count(ip) as 'COUNT' from db.table group by 2 order
by 1, 3;

None of the columns are a primary/foreign or an index. This query
returns 92K rows and has taken anywhere from 50 seconds to run to over
1.5 minutes. The table size on disk is around 33MB.

After doing some research i found that i should be changing the
tmp_table_size system variable. Originally it was set to the MySQL
default, 33554432. I set the varaible to 90,000,000 and it still
started paging out to the disk (this was the only query running at the
time). I would think that 90MB in space would have been enough to
handle the query since that would assume over 600K row size.

I actually had some trouble setting the tmp_table_size for the global
variable but was able to change it as a session variable.

I have also tried altering the query_cache variable (which has only
slowed the query down - currently it sits at a size of 50MB) and also
the sort_buffer_size but neither have made a difference.

What is the magic variable that i should be messing with?

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Copying Missing Items From One Table To Another
two structurally identical tables (national_db_1.users and national_db_2.users) in two different databases. I need to find what's missing in one and add it from the other.

I would like to insert records from national_db_1.users, that are not currently in national_db_2.users, into national_db_2.users.

Also, the entire row(s) should be copied, with the exception of the primary key, which can be automatically generated by the insert

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Copying To A New Table From An Old Table, With Indexes
I'm using the following command to make a copy of an existing table:

CREATE TABLE new_table_name SELECT * FROM source_table_name;
However this doesn't copy indexes. Is there any way to alter this command so that indexes are also copied?

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"table Is Read Only" After Copying Table Files To New Server
I'm trying to port my MySQL tables for a database called "tracerlock" from
one server to another. On the old server, in the /var/lib/mysql/tracerlock
directory, there was a ".MYD", ".MYI" and ".frm" file for every table in
the database. So after creating a database called "tracerlock" on the new
server, I copied these files over to the /var/lib/mysql/tracerlock
directory on the new server. On both servers, all the table files are
owned by user "mysql" in the "mysql" group.

Now, when I connect to MySQL on the new machine and load the tracerlock
database, "show tables" shows all the tables as expected, and I can perform
SELECT statements on them and get the correct results. But when I try
doing INSERT statements on one of the tables that was copied over, I get:

mysql> INSERT INTO test VALUES(3);
ERROR 1036: Table 'test' is read only

However, if I create a new table called test2, I can perform INSERT
statements on it with no error:

mysql> insert into test2 values(3);
Query OK, 1 row affected (0.00 sec)

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Dumping Data :: All Table Columns Info And Rows Of Data
Is there anyway to dump all the tables columns info and rows of data? Like you can with phpmyadmin, but just without using it :P

I have afew tables on my old desktop that i never saved the table info of and can't be arsed retyping it :P plus i wanna keep all the data of course

I tried installing phpmyadmin on it ages ago, but it ****ed up (which in turn was a good thing 'cause it forced me to learn to do things properly without the help of that), so yer...

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Help CHECKING FORM DATA AGAINST MYSQL TABLE DATA
PHP

// See if relevant fields have been set.

$submitted = IsSet($_REQUEST['Submit'])   ? TRUE : FALSE;
$user      = IsSet($_REQUEST['username']) ?
                   cleanValue($_REQUEST['username']) : ''
$pswd      = IsSet($_REQUEST['password']) ?
                   cleanValue($_REQUEST['password']) : ''

if($submitted) {                                        // Form submitted yet?

    if (empty($user) || empty($pswd)) {                 // Are Form fields empty?

        // Display error message when fields are not filled in.

$message = 'Make sure you enter both a username and password.'

    }

    else {

/* THIS IS MY HUMBLE EFFORT BELOW  AND IT DONT WORK HELP */

//CONVERT PASSWORD FROM FORM INTO MD5

$pswd = md5($pswd);

//CONNECT TO DATABASE

$connection = mysql_pconnect("$dbhost","$dbusername","$dbpasswd")
    or die ("Couldn't connect to server.");

$db = mysql_select_db("$database_name", $connection)
    or die("Couldn't select database.");

    //SELCT TABLE AND DATA

$sql = @mysql_query("SELECT * FROM users WHERE username='$user' AND password='$pswd' AND activated=Ƈ' ");
if (!$sql) {
  exit('<br /><br /><h3>Error retrieving Art members from database!<br />'.
      'Error: ' . mysql_error() . '</h3><br /><hr /><br />');
}

//MAKE VARIABLES FOR CHECKING FORM DATA AGAINST  IS THIS RIGHT!!

while ($login_check = mysql_fetch_array($sql)) {
  $user = htmlspecialchars($login_check['username']);
  $pswd = $login_check['password'];

  //NOT SURE FROM HERE

  // ORIGINAL SCRIPT BELOW

// Authenticate username and password (i.e. match against a database).
// Start a session only after username and password have been verified.

THIS IS THE EXAMPLE LOGIN CHECK THAT CAME WITH THE CLASS

if ((!strcmp($user, 'empl')) &&         // Does username match 'empl'?
  (!strcmp($pswd,'demo'))) {        // Does password match 'demo'?

            $sess_param['new_sid'] = TRUE;      // Create new session ID to be safe.
            $sess_param['security_level'] = 100;    // Security level for Employees area
            $sess_param['gc_maxlifetime'] = 300;   // Inactivity timeout of 300 seconds (5 minutes)
            $sess = new DB_eSession(&$sess_param);   // session_start() done.
            $sess->setSessVar('authenticated', TRUE);  // Set that authentication occurred.

// Save the username for displaying and encrypt
            $sess->setSessVar('username', $user, ENCRYPT_VALUE, EXTRA_FIELD);

            $URI = $sess->setSessURI('employees.php');  // Optional - pass session ID in URI. Not as safe.

            header("Location: $URI");                   // Go to members area.
            exit;
        }

REGARDS Bill007

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Selecting Data Form One Table That Is Based On An Entry In Another Table
This is the code I am using:

***********
SELECT co_name,city,country,logo_small FROM $info WHERE $info.co_name=$categories.co_name AND WHERE $categories.everyday_wear='y' ORDER BY co_name ASC
***********

I am using a while loop in php to loop through all of the records but no records are being displayed. What am I missing? Do I need to use a JOIN statement?

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Transform Or Pivot(?) Or Crosstab(?) Table In MySQL. One Data Table.
I have a table in the form:

year | season | hits

2004 | Summer | 42
2004 | Autumn | 43
2005 | Spring | 51
2005 | Summer | 52
2005 | Autumn | 53
2006 | Spring | 61

I want to generate a transform or pivot or crosstab - I'm not sure what the correct term is - to return the data in form

year | Spring | Summer | Autumn
2004 | ------ | ----42 | ----43
2005 | ----51 | ----52 | ----53
2006 | ----61 | ------ | ------

Could anyone suggest a mysql query to generate the required output?

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Copying A Row
Is there any easy way to duplicate a row in a table with auto increment column, that shouldn't of course be copied. I tried a query "NSERT INTO table SELECT * FROM table" but it caused an error due to the auto increment column. I succeeded with listing all required fields in the query, but it's not very efficient way to do it (in my opinion) as when I modify the table (add or remove columns), I should modify also all queries.

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Copying Db From One Sys To Another
i just copy pasted a db (the entire folder) from one sys to another. i can now open the database. and the SHOW TABLES cmd gives results. But when I use the DESC or SELECT or other cmds i get this error>>

error 1146 (42s02) : Table 'testing.trial' does not exist.

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Select Count Of Data Appearing In One Table From Another Table
I have three tables:

t_Products (id, name)
t_Shop (id, location, name)
t_Carries (product, shop)

If Shop carries a product, there will be a value pair in t_Carries but otherwise no record is listed.

Is it therefore possible to return a list in MySQL showing something like this

shop.Id, product.Id, count(or something)
1 1 0
1 2 1
1 3 1
1 4 0

Or must I use two query and programmatically generate the list?

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Select One Column From A Table That Matches Data From Other Table
how to select data from one column in a table where that data maches some other data in some other table, but that data in that other table contains only first 4 simbols of data in my initial table!

T1
aaa
bbb
ccc
ttt

T2
a
b
t

result should be
T1+T2 = T3

T3
aaa
bbb
ttt

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Inserting Data Into Existing Records Of A Table From Other Table
how to insert data from one table to an existing records of another table....

In specific how can i insert data into a table....in such a way that this data should not be inserted as a new record,rather it should be inserted into the existing records(these records at first contains only two fields of data..the remaining fields contain default values)

my question is that how to insert the data into these remaining fields from another table.(more specifically what is the insert statement used).

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Select Data From 1 Table Based On Criteria From Another Table
is it possible to select all the data in one table based on a criteria from another table?

for instance i want to select all the therapist from massage_therapist WHERE massage_schedule.finish > 0.
i don't want merged results. i just need to list all therapist based on the where criteria from a different table.

these two tables have the therapist_id in common.

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Copying A Mysql Row
I want to copy a row in a mysql table and create an similar row, except the new row will have a different primary key and one other column will be different.
Is there a query to do this? or would I need to pull all the info into PHP and then process it back into mysql?

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Copying Record
Does anyone have a simple query to copy a record for a paticular table?
My problem in that my tables change and i do not want to have to change the statement every time i change the table.
I was going to use insert .... select with ON DUPLICATE KEY UPDATE, but in the mysql manual it was on about adding one, and i might not want to copy the last record!
So how do most people do it?

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Copying Records
I was wondering if there was a way to copy records from a table into the same into the same table. I've built a user interface where a user can look at the rows in the table. Now I want the user to be able to select certain rows copy then and then insert them into the database under a new id #

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Copying One Server
I did a dumb of all my databases and now I want to restore that dump into another server and i'm getting an error 1064 when I try the following command.

mysql -u user -ppass < backup.sql
I'm using mysql 4.1 why do I keep getting this error when the syntax is correct?

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Copying A Database.
I just found out that the server I'm writing some code
for only has MySQL 3.23.55 which unfortunately doesn't
support subqueries (and dumb me I spent so much time
trying to make them work thinking it was a syntax problem).

I think temporary tables are the way to go, but I
can't find enough examples to put beside the manual
to full understand them. Any pointer to some resources
about this?

Specifically what I have are two tables:
- The first holds information about the flights in a timetable:
flight number, departure airport and arrival airport. Each
row is unique here.
- The second is basically a list of flights actually flown,
each flight identified by the flight number but not necessarily
unique or even present as a flight could have been flown
0, 1 or N times.

What I'd like is a query resulting in: flight number,
departure airport, arrival airport and "number of
time the flight has been flown".

The following query appearently worked:

SELECT t.flight, t.dpt, t.arr, count(*) as nb
FROM timetable t, flownlist f
WHERE t.flight=f.flightnumber
GROUP BY f.flight
ORDER BY nb

Unfortunately, I realized that flights never flown
but present in the timetable were not available in
the query's result as they are not present in the
flownlist.

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Copying Tables
I'm sure I'm missing something really easy, but how can I take a copy of some tables, whilst ignoring the contents, so all I am left with is the structure of those tables, ready to import into a new database?

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Copying A Database
Is there a simple, effective way to copy a database (without the data). I run a website that allows users to create their own league on Yahoo!... When the league is created at the moment I have to manually create a new database for them by entering the CREATE table for all the 13 tables within the database...

Is there a way to copy the database - something like COPY 'xcanasta' NAME 'xgin' - or sumthin.

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Copying Database
i am not too sure if i should post this question here but anyway, here goes. in phpmyadmin, i have two databases with database 1 and database 2. now database 1 has a tblmembers that would be needed in database 2. how do i copy that tblmembers from database 1 to database 2 with the exact fields that tblmembers have in database 1?

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Copying A Mysql Database
Mysql3 on an fc3 box. I do not have the root password for mysqld yet i
need to copy a database let's call it database1 to database2. This is for a
site testing purpose, it's to be an exact copy of database1, yet the two
databases do not have to be kept in sync after the copy.

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Copying MySQL Database
I'll preface this by saying that my preference is to dump a database to
SQL and transfer that file around but this is not the situation that
I'm in and I'll probably be in this situation in future..

I have all of the files from under C:Program FilesMySQLMySQL Server
4.1data that were copied from another machine while mysqld-nt.exe was
still running. I thought that maybe I could copy these files over to
my machine, after first removing all of the current files. When I
tried to do this I first shut down mysqld-nt.exe then I removed all of
the files under the data folder and then I copied all of the files from
the other machine's data folder.

After doing this I can longer start the mysqld-nt.exe service until I
revert all of the data files back to their original. When I attempt to
start the service I get the following errors logged to the event log:

Server Control Manager:
"The MySQL service terminated unexpectedly."

MySQL:
"Can't init databases"
"Aborting"

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Copying Linked Records
I have a master database setup that contains a user list and an evaluation list where each evaluation is linked to a user. Now, I have a couple of sales guys that are going to be out in the field gathering new users and evaluations with their own copy of this database (most places they'll be won't have an inet connection) and I'm planning to copy over their new info to the master when they return to the office.
My question is whether anyone here has had to do this before. Since this will have to be done frequently, I'm looking to write some code that will speedy up the coping process without breaking any links between the 2 tables (more tables to come in the future) By this I just mean if someone has a quick way for me to add the users and then match up records from the evaluation table to the new user IDs.Breaking these links appears to be my largest issue currently.

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Copying Phone Numbers
I have a table with names, addresses and phone numbers. However, only one address has the phone number even if there are two or three people living at the same address. What I want to do is select all addresses that are the same and if one of the records contains a telephone number then I want to copy it to the other addresses that are identical and then repeat this process for all the records in the table. Is this an impossible task and if not, how do I go about doing it.
Rick

Example: BEFORE:
address 1 telephone 1
address 1 (null)
address 1 (null)

AFTER
address 1 telephone 1
address 1 telephone 1
address 1 telephone 1

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