We have the same code running on different MySQL databases, saying db1, db2...and etc. We insert records into table1 for every db, like db1.table1, db2.table2...etc.
The same piece of code written in Zend DB Adapter can insert every table1 in every database, except one. Compare the database schema and they are all created the same. Manually inserting the record to the table1 is successful in every table.
What could be the possible reasons? How to further troubleshoot?
The MySQL version is 5.0.0.7.
Related
I have two separate databases installed on the same server. I name the representation as db1 and db2. I have a table named sample_table in my db1 database. I am trying to copy this table with its records to my db2 database with the following queries:
CREATE TABLE db2.sample_table LIKE db1.sample_table
insert into db2.sample_table select * from db1.sample_table
As a result of my research, I found that this method works in most places. However, when I type and run my query from the db2 console, I am having a user permission problem for db1. The query might be running, but should there be a configuration link between these two databases? If so, how can I get this link? What are the alternative solution methods I can overcome this problem?
I've written code to insert data in mysql database successfully compiled it on cmd and my database along with table is also ready.
I want to know the further steps so that can understand whether my record has inserted or not in mysql
If your code is doing as expected, and there is no error, then the values should be inserted.
Steps to check whether everything is working fine or not:
Go to your database and run this query:
SELECT * FROM tableName
Run the program and insert some data.
Again go to your database and run this query:
SELECT * FROM tableName
If there are changes appeared according to the data inserted, it means your program is working fine.
Getting ready to get rid of a MySQL database and switch to Oracle SQL. I am using Oracle SQL Developer. Need to get the records from a MySQL table and populate its corresponding table in SQL.
I was able to establish a Database connection in SQL Developer to the MySQL database. I checked the connection by doing a simple SELECT * from the table to make sure it returned all the records.
However, the new Oracle SQL table has quite a few changes - the names in the MySQL table all had a "tn" prefix, ie tnStore, tnConfigDate, etc. The SQL table gets rid of that prefix. That is issue #1.
There will also be several new columns in the new table. That data will be added later from elsewhere. And the data will not be in the same order as the MySQL table.
How do a write up a SELECT INTO statement in SQL Developer to populate the SQL table with the data from the MySQL table and correlate the corresponding columns while leaving new fields blank for now?
Here is a way by programming but not sure how to make it in single query:
I hope we need to use data dictionary tables in oracle all_tab_columns and I am not sure in Mysql ( like similar table)
Get the column name from Mysql table by taking out prefix "tn" and
compare the column name with SQL table. (possible use an cusrsor)
If matched build SQL statement for SELECT INTO statement and blank
for new fields possibly in a loop.
Once done for all columns , execute that statement
Consider migrating the existing MySQL tables as-is straight to Oracle using SQL Developer. Then move/refactor the data around to your new-tables with desired column definitions using INSERT as SELECTs.
Could be considerably faster, plus once the 'raw' data is there, you can do your work over and over again, until you get it just right.
Note you can also simply drag-and-drop to move a MySQL table from it's connection to an existing Oracle database connection to move the table over (DDL, Data, or Both).
I have the following issue related to I have in localhost(my computer) a Table in a database which I use to update the data for a month. Once data is correct, I need to update the Table in the database which resides in the server.
I use Navicat to do the work and it only transfer data deleting the actual database in the server and sending all the data from my localhost.
The problem is that the Table now has almost 300.000 records stored and it takes too long transfering the data leaving the database empty for some time.
Is there any way I could use that only update the data without deleting the whole table?
export local table with different name as mysqldump or just csv, 300k rows is not a big deal and use a different table now.
then upload the table 2 to db and use a query to update table 1 using table2 data.
I want to copy the data from one MySQL table to another table. The source table contains 30 million records. the SQL connection gets lost when I tried to copy the data using the SQL query
INSERT table2 SELECT * FROM table1
Is there any external tool avaliable to do this job from the shell
Thanks
Sree
The mysql command line tool should be able to handle this just fine.