Working on my first iOS App with SQLite database. In Project I have 2 Database, in which First Database is having only one table and the another one is working as a main database. I want to merge those databases into one (the Second one), by copy the table from first database to second database. The First database Table contains more than 32K records. So, I want to copy the entire table with Data.
I want to achieve this using SQLManager AddOn of firefox.
Any Idea?
Instead of SQLManager, You can simply do this with one command line:
$ echo '.dump tablename' | sqlite3 sourcedb | sqlite3 destdb
Export the required table contents in to an excel sheet in sqlite manager and then import the excel file in the target database.
you can see the controls for import and export in sqlite manager itself.
I hope this may help u, since I used it.
Related
I am using DBeaver 21.2.0 and I have found the option to preview the SQL statements before saving modified data to the database (MySQL), through the Script icon in the bottom toolbar.
But when I modify the table structure (for example, add a column, remove a column...) no such option seems to exist. I can only save the changes to the database, but it is imperative for me to see the SQL statements before executing them.
Is that possible?
I have a dataset based on a csv file. This exposes a data as follows:
Name,Age
John,23
I have an Azure SQL Server instance with a table named: [People]
This has columns
Name, Age
I am using the Copy Data task activity and trying to copy data from the csv data set into the azure table.
There is no option to indicate the table name as a source. Instead I have a space to input a Stored Procedure name?
How does this work? Where do I put the target table name in the image below?
You should DEFINITELY have a table name to write to. If you don't have a table, something is wrong with your setup. Anyway, make sure you have a table to write to; make sure the field names in your table match the fields in the CSV file. Then, follow the steps outlined in the description below. There are several steps to click through, but all are pretty intuitive, so just follow the instructions step by step and you should be fine.
http://normalian.hatenablog.com/entry/2017/09/04/233320
You can add records into the SQL Database table directly without stored procedures, by configuring the table value on the Sink Dataset rather than the Copy Activity which is what is happening.
Have a look at the below screenshot which shows the Table field within my dataset.
We have a MySQL Workbench project with two tabs (two schemas/two databases).
If we create a table in the first tab, it's attached to the schema
magikweb_dev_igcweb.
If we create a table in the second tab, it's attached to the schema
magikweb_dev_igcweb_archive.
If we copy-paste/duplicate a table from the first tab to the second tab, the resulting table remains in the first schema. How can you change a table's schema?
Each schema is linked with a specific database, so when we use the "Synchronize Model..." feature, it links all the tables properly.
Use the model tab. You can cut out a table from one schema tab and insert it into another.
The cut-and-paste method described in another answer works well for tables with no foreign keys, and for a reasonable number of tables.
An alternative that preserves foreign keys is to export the model as a SQL script, edit it, and then import the new script into a new model.
Using MySQL Workbench v6.3:
File -> Export -> Forward Engineer SQL Script
Carefully edit SQL script. Replace references to one schema with the other, for the tables you want to move. Do this both for CREATE TABLE commands and foreign key references.
File -> New Model
File -> Import -> Reverse Engineer SQL Script
Unfortunately you will then need to recreate any diagrams. But that can be straightforward if you have the original diagram as reference (take a screenshot or export it to PNG or PDF.)
Follow this simple steps (never miss step 4 and 5) :
Open Model Tab
Choose source schema. In my case, I want to copy table users from schema abc_develop_v1 to schema abc_develop_v2 then paste to diagram . So I choose schema abc_develop_v1, right-click table users then Copy 'users'
Go to the targeted schema. In my case is schema abc_develop_v2, right-click then Paste 'users'
Next, copy table users from schema abc_develop_v2. Right-click table users then Copy 'users'
Go to your diagram and Paste 'users'.
That's all. Your table is ready in your diagram with the right schema :-)
Notes: You can double check by double-click on the table in your diagram, and look at the right corner. It will show the Schema name.
I found a less painful way to do this.
Save and backup your diagram and your schema.
Display schema's name before table's names in diagram. This will make the next step easier.
Right-click on the tables which are on the wrong schema, and select "Copy SQL to clipboard". Paste the script in a new SQL window. Repeat for each table you want to migrate.
Edit the script to change the schema name. Watch for any miss in entries, the wrong schema might be a reference at any line. Mine was mydb, which I don't remember creating. Execute the script. Now you have the tables on the right schema.
Synchronize your model. Be sure to check "Update the model" for each missing table, otherwise, the tables will be deleted from the schema :)
Drag'n'drop the newly created tables into the diagram. Then remove the ones which are using the wrong schema. Tip: tables that are not in diagram won't display a dot next to their name.
Optionally, you can delete the faulty schema from the model so this never happens again. Be sure to know what you're doing first!
I have a new table I want to add to an existing db, the structure of which I exported to a file table.sql.
table.sql has 75 columns, so naturally I would rather find a way to copy/import the structure into the existing db than creating a new table and manually defining each of the 75 fields.
Is there a way to import this table structure into my database mydb (which is populated with data)? There has to be -- this is computing. I am staring at phpmyadmin and can't figure out how to do this.
Any suggestions would be welcome.
Thanks in advance.
okay, figured out how to do it. I just opened the exported .sql file, and copied/pasted the "CREATE TABLE..." statement into the DB's SQL window in phpMyAdmin and it worked -- I now have that new 75-column table.
But I'm still a bit mystified over why phpmyadmin gave a success message when I tried to import the .sql file but did not display the allegedly imported table.
There is an Import tab in phpMyAdmin.
Open the database you would like to import into, then click on the "Import" tab and upload your file.
You can learn more here: http://www.techrepublic.com/blog/smb-technologist/import-and-export-databases-using-phpmyadmin/
An alternate way would be to copy the mySQL statement(s) in your table.sql file, open the "SQL" tab, paste it in the box, and then the run the query.
I hope this helps!
It's easy. You should choose your database then in the Import tab, select choose file. Select your file then press Go. It worked for me. You can find the new table in your database.
I am using MVC 3. I use Model first approach.
I created the Product Entity, in model folder. Which contains
ProductID
Name ---properties.
then, I create the SQL table from that model,It generates SQL table perfectly.
(I right click on model image and selects the option 'Generate database from model...'
then SQL window pop ups which contains all the DB scripts and I execute it.)
Now problem comes when, If I want to make changes in that model.
I have to recreate the table each time,so my data get lost.
whether, I have to generate SQL table every time when I make change in model?
How to avoid it?