What is the simplest way to migrate data from MySQL to DB2 - db2

Question

I need to migrate data from MySQL to DB2. Both DBs are up and running.
I tried to mysqldump with --no-create-info --extended-insert=FALSE --complete-insert and with a few changes on the output (e.g. change ` to "), I get to a satisfactory result but sometimes I have weird exceptions, like
does not have an
ending string delimiter. SQLSTATE=42603
Ideally I would want to have a routine that is as general as possible, but as an example here, let's say I have a DB2 table that looks like:
db2 => describe table "mytable"
Data type Column
Column name schema Data type name Length Scale Nulls
------------------------------- --------- ------------------- ---------- ----- ------
id SYSIBM BIGINT 8 0 No
name SYSIBM VARCHAR 512 0 No
2 record(s) selected.
Its MySQL counterpart being
mysql> describe mytable;
+-------+--------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------+--------------+------+-----+---------+----------------+
| id | bigint(20) | NO | PRI | NULL | auto_increment |
| name | varchar(512) | NO | | NULL | |
+-------+--------------+------+-----+---------+----------------+
2 rows in set (0.01 sec)
Let's assume the DB2 and MySQL databases are called mydb.
Now, if I do
mysqldump -uroot mydb mytable --no-create-info --extended-insert=FALSE --complete-insert | # mysldump, with options (see below): # do not output table create statement # one insert statement per record# ouput table column names
sed -n -e '/^INSERT/p' | # only keep lines beginning with "INSERT"
sed 's/`/"/g' | # replace ` with "
sed 's/;$//g' | # remove `;` at end of insert query
sed "s/\\\'/''/g" # replace `\'` with `''` , see http://stackoverflow.com/questions/2442205/how-does-one-escape-an-apostrophe-in-db2-sql and http://stackoverflow.com/questions/2369314/why-does-sed-require-3-backslashes-for-a-regular-backslash
, I get:
INSERT INTO "mytable" ("id", "name") VALUES (1,'record 1')
INSERT INTO "mytable" ("id", "name") VALUES (2,'record 2')
INSERT INTO "mytable" ("id", "name") VALUES (3,'record 3')
INSERT INTO "mytable" ("id", "name") VALUES (4,'record 4')
INSERT INTO "mytable" ("id", "name") VALUES (5,'" "" '' '''' \"\" ')
This ouput can be used as a DB2 query and it works well.
Any idea on how to solve this more efficiently/generally? Any other suggestions?

Answer 1

After having played around a bit I came with the following routine which I believe to be fairly general, robust and scalable.
1 Run the following command:
mysqldump -uroot mydb mytable --no-create-info --extended-insert=FALSE --complete-insert | # mysldump, with options (see below): # do not output table create statement # one insert statement per record# ouput table column names
sed -n -e '/^INSERT/p' | # only keep lines beginning with "INSERT"
sed 's/`/"/g' | # replace ` with "
sed -e 's/\\"/"/g' | # replace `\"` with `#` (mysql escapes double quotes)
sed "s/\\\'/''/g" > out.sql # replace `\'` with `''` , see http://stackoverflow.com/questions/2442205/how-does-one-escape-an-apostrophe-in-db2-sql and http://stackoverflow.com/questions/2369314/why-does-sed-require-3-backslashes-for-a-regular-backslash
Note: here unlike in the question ; are not being removed.
2 upload the file to DB2 server
scp out.sql user#myserver:out.sql
3 run queries from the file
db2 -tvsf /path/to/query/file/out.sql