using ruby's mysql gem i'm inserting a new row into a table wich has encoding utf8_spanish_ci.
here's the code i'm executing
require 'mysql'
con = Mysql.new(#connecionparameters)
rs = con.query("INSERT INTO `qubi_horoscopo`.`signos` (`name`) VALUES ('acción')")
and when i query the table i get the following result :
id name
1 acción
i've checked that i'm using the same collation in the database, table and column.
so i don't know what's going wrong.
any idea? thanks!
I've solved this executing
con.query("SET NAMES UTF8")
right before my insert query.
i hope this helps anyone having the same problem. i don't know if it's the best solution.
Related
I have to work on a linked server. My goal: Update an entire table in mysql server(version:8.0.21) via OPENQUERY in SQL Server(version 13.0.1742.0). I tried this but it generates an error Row cannot be located for updating. Some values may have been changed since it was last read and this one The rowset was using optimistic concurrency and the value of a column has been changed after the containing row was last fetched or resynchronized.
update linkedTable
set
linkedTable.id_parent=unlinkedTable.IdCat1,
linkedTable.code=unlinkedTable.CodeFamilleFAT,
linkedTable.niveau=unlinkedTable.NiveauCategorieFAT,
linkedTable.langue=unlinkedTable.CodeLangueFAT,
linkedTable.nom=unlinkedTable.LibelleCommercialFAT,
linkedTable.descriptionA=unlinkedTable.DescriptifCom1FAT,
linkedTable.vignette=null,
linkedTable.id_categorie=unlinkedTable.id
from openquery(NAMELINKEDSERVER, 'select id_categorie, id_parent, code, niveau, langue, nom, description as descriptionA, vignette from DatabaseMySQL.Table') as linkedTable
inner join DatabaseSQLserver.dbo.Table as unlinkedTable on unlinkedTable.Id = linkedTable.id_categorie
Then I tried this:
update linkedTable
set
linkedTable.id_parent=unlinkedTable.IdCat1,
linkedTable.code=unlinkedTable.CodeFamilleFAT,
linkedTable.niveau=unlinkedTable.NiveauCategorieFAT,
linkedTable.langue=unlinkedTable.CodeLangueFAT,
linkedTable.nom=unlinkedTable.LibelleCommercialFAT,
linkedTable.descriptionA=unlinkedTable.DescriptifCom1FAT,
linkedTable.vignette=null,
linkedTable.id_categorie=unlinkedTable.id
from openquery(NAMELINKEDSERVER, 'select id_categorie, id_parent, code, niveau, langue, nom, description as descriptionA, vignette from DatabaseMySQL.Table') as linkedTable
inner join DatabaseSQLserver.dbo.Table as unlinkedTable on unlinkedTable.Id = linkedTable.id_categorie
where linkedTable.id_categorie = 1
This work but only one row is updated. So I wrote a stored procedure to update each line but it took too much time.
Can someone explain why my first query didn't work (question1) and how I can reduce the time of my stored procedure (question2)?
I use while loop (count the number of id and update each id).
Thank you in advance.
Kind Regards.
I resolve the problem by checking some option on ODBC Driver in MySQL and reading some forum. I check this box.
enter image description here
This option allows to avoid the errors quoted previously. With this option, i can update multiple values without error on join or other request. Thank you Solarflare and "Another guy" (i lost the name) for correcting me (EDIT A POST). Have nice day both.
I want to insert two dates into a specifc row on my table using MySql but have a syntax error on Workbench (Error 1064):
INSERT INTO atable (Activated,Expiry) WHERE Access_Code = 'accesscode'
VALUES('$current_date','$Expiration_Date')
What would be the correct version for this?
It would be something like this:
UPDATE atable
SET Activated='$current_date',
Expiry='$Expiration_date'
WHERE Access_Code='accesscode';
I'm assuming you will be setting $current_date and $Expiration_date via (what looks like PHP) code.
Hope this helps.
I'm trying to insert into a remote mysql database. I am able to connect correctly and can query 'select' no problem from it. However, I cannot perform inserts into the same table that I can select from. I suspect it has something to do with my binds, but this is nearly identical to what I was using to get sqlite3 working which I think uses the same Arel to insert.
#result = #db.query("insert into lead_to_processes (case_number, style_of_case) values (?,?)", [
self.case_number.to_blob.force_encoding("UTF-8"),
self.style_of_case.to_blob.force_encoding("UTF-8")
]
)
Ultimate goal is to be able query a remote database from inside of a model and insert data into it. I've tried using Octopus and that didn't quite work because the tables will be different from the databases.
I have full permissions with this user on the database.
So following guidance from comments i changed the syntax and am getting a different error
Mysql2::Error: You have an error in your SQL syntax;
However i'm doing the query like this now
#db = Mysql2::Client.new(connectionstring)
#case_number = #db.escape(self.case_number)
#style_of_case = #db.escape(self.style_of_case)
#db.query("insert into lead_to_processes (case_number, style_of_case) VALUES
(#{#case_number}, #{#style_of_case})
Any ideas or guidance? I've also tried this with '' encapsulating the variables that i'm inserting
I guess there were some weird characters in my code so I had to force UTF-8 encoding and then removed the characters using gsub below, everything is flowing now.
Thanks for the advice
#db.escape(self.style_of_case.force_encoding("UTF-8"))
#db.escape(self.case_number.gsub(/[\xC2]/,'').gsub(/[\xA0]/,'').force_encoding("UTF-8"))
Is it possible that you are missing an end quote?
this
#db.query("insert into lead_to_processes (case_number, style_of_case) VALUES
(#{#case_number}, #{#style_of_case})
should be
#db.query("insert into lead_to_processes (case_number, style_of_case) VALUES
(#{#case_number}, #{#style_of_case}") <== notice the quote at the end.
I'm trying to insert a ton of rows into my MySQL database. I have a query like this, but with about 700 more repetitive entries in it but for some reason the query is only inserting the first row to the database. In this case it would be '374','4957','0'.
INSERT INTO table VALUES ('374','4957','0'),('374','3834','0'),('374','4958','0'),('374','5076','0'),('374','4921','0'),('374','3835','0'),('374','4922','0'),('374','3836','0'),('374','3837','0'),('374','4879','0'),('374','3838','0')
I can't figure out what I'm doing wrong.
Thank you in advance.
Don't mean to state the obvious, but if the first field '374' is your primary key field, than this is the issue.
Otherwise, are there any error messages received from the database? That is always a good place to look for bugs.
For better understanding why something is not working next time use code like this:
$sql = "INSERT INTO table VALUES ('374','4957','0'),('374','3834','0')";
if (!mysqli_query($link, $sql)) {
printf("Errormessage: %s\n", mysqli_error($link));
}
That should display error message returned from MySQL.
More information: PHP manual - mysqli_error
Try to write the column names before values.
For example:
INSERT INTO table (column1,column2,column3) VALUES ...
I have a table with three columns named: Question, Answer, Hashed. I want to update the Hashed column with the Answer column hashed using sha512.
I've tried to do the update directly from my MySql database using this syntax, but it didn't work:
UPDATE TableName
SET Hashed = SHA512(Answer)
WHERE Hashed IS NULL
I know the syntax is wrong but not sure why.
Thanks in advance for your help!
R
Give this a shot.
UPDATE TableName SET Hashed=SHA2(Answer, 512) WHERE Hashed IS NULL;
Note that this will only work with MySQL 5.5 onward. For versions before 5.5, you'll have to use application code to hash it (PHP to get all the rows, iterate through and hash $row['answer'] to SHA512, then run the UPDATE commands on each)
(Source: http://dev.mysql.com/doc/refman/5.5/en//encryption-functions.html#function_sha2)
I hope this is not too late. Even if, maybe someone else will find out this hint:
UPDATE TableName SET Hashed = ENCRYPT('Answer', CONCAT('$6$', SUBSTRING(SHA(RAND()), -16))) WHERE Hashed IS NULL;
What it does, it creates sha-512 hash, with it's schema: $6$ from string 'Answer'
If you are using debian, you may also use mkpasswd from package libstring-mkpasswd-perl to generate SHA-512 for you, and update as string.