I successfully executed the sql code below from an msql editor (phpmyadmin), testing it with one customer (where Customer No=1). I need to now run the sql script for all the customers.
START TRANSACTION;
INSERT INTO `addresses` (`AddressLine1`,`CityID`,`ProvStateCode`,`AddressPostCode`,`CountryIso`) SELECT `Bill To Address`,`Bill To City`,`Bill To Province`,`Bill Code`,`Country` FROM `pdx_customers` where `Customer No`=1;
SELECT #last_id := LAST_INSERT_ID();
SELECT `Customer No` FROM `pdx_customers`
INSERT INTO `customer_addresses` (`CustID`,`AddressID`,`AddressTypeID`) Values(1,#last_id,1);
COMMIT;
It seems I would need to create a stored procedure ? In a loop, I need to get the Customer No dynamically for each row in the pdx_customers table, and enter into the Values clause in the insert command, i.e Values(#CustID,#last_id,1). Not sure how I would do this ?
Any help would be appreciated.
Thanks
This is a really common problem, and I would say that doing a loop in sql is almost never a good idea. Here is another option, which you may or may not consider good as it does introduce a new column. I've used it in some apps I've done, and its made things very simple. Does depend on your use case though so it wont be for everyone.
1) Firstly, add a new column to the address table, call it something that wont be confused by anyone looking at the table like TempInsertId.
2) When writing the new address, include the CustomerId in the TempInsertId column
3) Now you can easily read the AddressId and CustomerId back and write it into the CustomerAddress table
4) If you wish, do a final update to set the TempInsertId back to null.
As I said, not advocating in all cases, but it can be a very simple solution to the problem.
You can use the below statement to create a loop:
start transaction;
while counter < max do
insert into . . . ;
set counter=counter+1;
end while;
Related
Is it possible to achieve something like this?
Suppose name and plural_name are fields of Animal's table.
Suppose pluralise_animal is a helper function which takes a string and returns its plural literal.
I cannot loop over the animal records for technical reasons.
This is just an example
Animal.update_all("plural_name = ?", pluralise_animal("I WANT THE ANIMAL NAME HERE, the `name` column's value"))
I want something similar to how you can use functions in MySQL while modifying column values. Is this out-of-scope or possible?
UPDATE animals SET plural_name = CONCAT(name, 's') -- just an example to explain what I mean by referencing a column. I'm aware of the problems in this example.
Thanks in advance
I cannot loop over the animal records for technical reasons.
Sorry, this cannot be done with this restriction.
If your pluralizing helper function is implemented in the client, then you have to fetch data values back to the client, pluralize them, and then post them back to the database.
If you want the UPDATE to run against a set of rows without fetching data values back to the client, then you must implement the pluralization logic in an SQL expression, or a stored function or something.
UPDATE statements run in the database engine. They cannot call functions in the client.
Use a ruby script to generate a SQL script that INSERTS the plural values into a temp table
File.open(filename, 'w') do |file|
file.puts "CREATE TEMPORARY TABLE pluralised_animals(id INT, plural varchar(50));"
file.puts "INSERT INTO pluralised_animals(id, plural) VALUES"
Animal.each.do |animal|
file.puts( "( #{animal.id}, #{pluralise_animal(animal.name)}),"
end
end
Note: replace the trailing comma(,) with a semicolon (;)
Then run the generated SQL script in the database to populate the temp table.
Finally run a SQL update statement in the database that joins the temp table to the main table...
UPDATE animals a
INNER JOIN pluralised_animals pa
ON a.id = pa.id
SET a.plural_name = pa.plural;
I am trying to develop software for one of my classes.
It is supposed to create a table contrato where I would fill the info of the clients and how much are they going to pay and how many payments they will make to cancel the contract.
On the other hand I have another table cuotas which should be filled by importing some info from table1 and I'm trying to perform the math and save the payment info directly into the SQL. But it keeps telling me I cant save the SQL because of error #1241
I'm using PHPMyAdmin and Xampp
Here is my SQL code
INSERT INTO `cuotas`(`Ncontrato`, `Vcontrato`, `Ncuotas`) SELECT (`Ncontrato`,`Vcontrato`,`Vcuotas`) FROM contrato;
SELECT `Vcuotaunit` = `Vcontrato`/`Ncuotas`;
SELECT `Vcuotadic`=`Vcuotaunit`*2;
Can you please help me out and fix whatever I'm doing wrong?
Those selects are missing a FROM clause.
So it's unknown from which table or view they have to take the columns.
You could use an UPDATE after that INSERT.
INSERT INTO cuotas (Ncontrato, Vcontrato, Ncuotas)
SELECT Ncontrato, Vcontrato, Vcuotas
FROM contrato;
UPDATE cuotas
SET Vcuotaunit = (Vcontrato/Ncuota),
Vcuotadic = (Vcontrato/Ncuota)*2
WHERE Vcuotaunit IS NULL;
Or use 1 INSERT that also does the calculations.
INSERT INTO cuotas (Ncontrato, Vcontrato, Ncuotas, Vcuotaunit, Vcuotadic)
SELECT Ncontrato, Vcontrato, Vcuotas,
(Vcontrato/Ncuota) as Vcuotaunit,
(Vcontrato/Ncuota)*2 as Vcuotadic
FROM contrato;
Started to get following error when executing certain SP. Code related to this error is pretty simple, joining #temp table to real table
Full text of error:
Msg 605, Level 21, State 3, Procedure spSSRSRPTIncorrectRevenue, Line 123
Attempt to fetch logical page (1:558552) in database 2 failed. It belongs to allocation unit 2089673263876079616 not to 4179358581172469760.
Here is what I found:
https://support.microsoft.com/en-us/kb/2015739
This suggests some kind of issue with database. I run DBCC CHECKDB on user database and on temp database - all passes.
Second thing I'm doing - trying to find which table those allocation units belong
SELECT au.allocation_unit_id, OBJECT_NAME(p.object_id) AS table_name, fg.name AS filegroup_name,
au.type_desc AS allocation_type, au.data_pages, partition_number
FROM sys.allocation_units AS au
JOIN sys.partitions AS p ON au.container_id = p.partition_id
JOIN sys.filegroups AS fg ON fg.data_space_id = au.data_space_id
WHERE au.allocation_unit_id in(2089673263876079616, 4179358581172469760)
ORDER BY au.allocation_unit_id
This returns 2 objects in tempdb, not in user db. So, it makes me think it's some kind of data corruption in tempdb? I'm developer, not DBA. Any suggestions on what I should check next?
Also, when I run query above, how can I tell REAL object name that I understand? Like #myTempTable______... instead of #07C650CE
I was able to resolve this by clearing the SQL caches:
DBCC FREEPROCCACHE
GO
DBCC DROPCLEANBUFFERS
GO
Apparently restarting the SQL service would have had the same affect.
(via Made By SQL, reproduced here to help others!)
I have like your get errors too.
firstly you must backing up to table or object for dont panic more after. I tryed below steps on my Database.
step 1:
Backing up table (data movement to other table as manuel or vs..how can you do)
I used to below codes to my table move other table
--CODE-
set nocount on;
DECLARE #Counter INT = 1;
DECLARE #LastRecord INT = 10000000; --your table_count
WHILE #Counter < #LastRecord
BEGIN
BEGIN TRY
BEGIN
insert into your_table_new SELECT * FROM your_table WHERE your_column= #Counter --dont forget! create your_table_new before
END
END TRY
BEGIN CATCH
BEGIN
insert into error_code select #Counter,'error_number' --dont forget the create error_code table before.
END
END CATCH
SET #Counter += 1;
END;
step 2:
-DBCC CHECKTABLE(your_table , REPAIR_REBUILD )
GO
check your table. if you have an error go to other step_3.
step 3:
!!attention!! you can lost some data/datas on your table. but dont worry. so you backed-up your table in step_1.
-DBCC CHECKTABLE(your_table , REPAIR_ALLOW_DATA_LOSS)
GO
Good luck!
~~pektas
In my case, truncating and re-populating data in the concerned tables was the solution.
Most probably the data inside tables was corrupted.
Database ID 2 means your tempdb is corrupted. Fixing tempdp is easy. Restart sqlserver service and you are good to go.
This could be an instance of a bug Microsoft fixed on SQL Server 2008 with queries on temporary tables that self reference (for example we have experienced it when loading data from a real table to a temporary table while filtering any rows we already have populated in the temp table in a previous step).
It seems that it only happens on temporary tables with no identity/primary key, so a workaround is to add one, although if you patch CU3 or later you also can enable the hotfix via turning a trace flag on.
For more details on the bug/fixes: https://support.microsoft.com/en-us/help/960770/fix-you-receive-error-605-and-error-824-when-you-run-a-query-that-inse
I have recently switched over from OpenOffice Base to MySQL community. In ooBase you can customize integers upon entering them into the database. For example I could type 2013_00000 and then every number in this column would be formatted in this way (2013_00001, 2013_00002, ...). After playing around with MySQL community for a while I noticed that there is no obvious way to format a custom integer like this. I might be overlooking something basic, but if anyone knows how to do this please let me know. Thank you
In order to manipulate data before inserting them you need a trigger.
Something like that:
CREATE TRIGGER ins_sn BEFORE INSERT ON tbl
FOR EACH ROW
SET NEW.sn = CONCAT(LEFT(NEW.sn, 4), '_', RIGHT(NEW.sn,5));
If you need to update your rows, you need a second trigger:
CREATE TRIGGER upd_sn BEFORE UPDATE ON tbl
FOR EACH ROW
SET NEW.sn = CONCAT(LEFT(NEW.sn, 4), '_', RIGHT(NEW.sn,5));
See http://sqlfiddle.com/#!2/01428/1 for the complete example.
Here, I use the CONCAT(), LEFT() and RIGHT() functions for simplicity. Maybe your data require more complex manipulations (i.e.: padding). MySQL has a rich set of string functions. Anyway this is the principle.
Not the most flexible (here locked down to an underscore separator), but you can do it with a trigger, something like this;
CREATE TRIGGER trig_MyTable BEFORE INSERT ON MyTable
FOR EACH ROW
BEGIN
SELECT seq into #seq FROM MyTable_Seq FOR UPDATE;
SET NEW.id = #seq, #cutoff = LOCATE('_', #Seq);
UPDATE MyTable_Seq SET Seq =
CONCAT(LEFT(#seq, #cutoff),
LPAD(SUBSTR(#seq, #cutoff+1)+1, LENGTH(#seq)-#cutoff, '0'));
END;
//
An SQLfiddle to test with.
I am porting client DB to new one with different post titles and rows ID's , but he wants to keep the hits from old website,
he has over 500 articles in new DB , and updating one is not an issue with this query
UPDATE blog_posts
SET hits=8523 WHERE title LIKE '%slim charger%' AND category = 2
but how would I go by doing this for all 500 articles with 1 query ? I already have export query from old db with post title and hits so we could find the new ones easier
INSERT INTO `news_items` (`title`, `hits`) VALUES
('Slim charger- your new friend', 8523 )...
the only reference in both tables is product name word within the title everything else is different , id , full title ...
Make a tmp table for old data in old_posts
UPDATE new_posts LEFT JOIN old_posts ON new_posts.title = old_posts.title SET new_posts.hits = old_posts.hits;
Unfortunately that's not how it works, you will have to write a script/program that does a loop.
articles cursor;
selection articlesTable%rowtype;
WHILE(FETCH(cursor into selection)%hasNext)
Insert into newTable selection;
END WHILE
How you bridge it is up to you, but that's the basic pseudo code/PLSQL.
The APIs for selecting from one DB and putting into another vary by DBMS, so you will need a common intermediate format. Basically take the record from the first DB, stick it into a struct in the programming language of your choice, and prefrom an insert using those struct values using the APIs for the other DBMS.
I'm not 100% sure that you can update multiple records at once, but I think what you want to do is use a loop in combination with the update query.
However, if you have 2 tables with absolutely no relationship or common identifiers between them, you are kind of in a hard place. The hard place in this instance would mean you have to do them all manually :(
The last possible idea to save you is that the id's might be different, but they might still have the same order. If that is the case you can still loop through the old table and update the number table as I described above.
You can build a procedure that'll do it for you:
CREATE PROCEDURE insert_news_items()
BEGIN
DECLARE news_items_cur CURSOR FOR
SELECT title, hits
FROM blog_posts
WHERE title LIKE '%slim charger%' AND category = 2;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
OPEN news_items_cur;
LOOP
IF done THEN
LEAVE read_loop;
END IF;
FETCH news_items_cur
INTO title, hits;
INSERT INTO `news_items` (`title`, `hits`) VALUES (title, hits);
END LOOP;
CLOSE news_items_cur;
END;