Create MySQL Database with .SQL File - mysql

I don't know much about MySQL at all. But I am trying to reverse engineer a MySQL database using Visio. I know what steps I should take to do this, but I can't get my database to show in the 'Databases' section (as below):
How do I create the MySQL database using the .SQL file and get it to show up in this list? I have tried this code:
mysql -u username -p password database_name < filename.sql
using my own credentials of course. But that doesn't seem to work. In what folder should the .SQL file be placed if this statement is to work?

1) Create a file "filename.sql"
2) Create a database in your DB in which you want to import this file.
3) From command-prompt/terminal, move to the directory where you have created a "filename.sql".
4) Run the command: mysql -u username -p password database_name < filename.sql. (You can also give the proper path of your file and run this command from anywhere). It might be the case that you don't have a password set for MySQL. If so, mysql -u username database_name < filename.sql will also work.
In your case if you have created a database with name ojs and also created a file with name ojs.sql in C: drive then run the following command:
Edit: Put the path inside quotes.
mysql -u username -p password ojs < "C:\ojs.sql"
There is another way of importing tables in mysql. You can do it this way as well:
1) Connect your database
2) Type command "use ojs;"
3) Type command "source C:/ojs.sql"

Most MySQL SQL files that create databases create the database 'on-the-fly', so you typically needn't do anything except:
log-in
mysql -u [username] -p[password]
(Note: make sure you do NOT include a space (' ') character between the -p and the [password].
MySQL will think that [password] is the name of the database you want to connect to.
The 'general' log-in (above) does not assume you want to connect to any particular schema.)
source the file (do not use quotes around filename)
mysql> source [database_creation_file].sql

you can simply do it using mysql workbench
1> create a new query tab
2> CREATE DATABASE database_name;
3> USE database_name;
4> open the filename.sql file and execute it ctrl + shift + enter
5> all the tables in the filename.sql are created

To create a MySQL database using a SQL file, you can follow these steps:
Log in to your MySQL server using the mysql command-line tool and the appropriate credentials.
Use the CREATE DATABASE command to create a new database with the desired name:
CREATE DATABASE database_name;
Use the USE command to switch to the newly created database:
USE database_name;
Use the SOURCE command to import the SQL file into the database:
SOURCE path/to/sql/file;
The database will now be created and populated with the data from the SQL file. You can verify this by running some SQL queries against the database.
It's important to note that this process assumes that the SQL file contains valid SQL statements compatible with the version of MySQL you are using. If the SQL file contains any errors or unsupported statements, they will be displayed in the mysql command-line tool, and the import process will be interrupted.

Related

mysqldump does not want import data inside mariadb [duplicate]

I was given a MySQL database file that I need to restore as a database on my Windows Server 2008 machine.
I tried using MySQL Administrator, but I got the following error:
The selected file was generated by
mysqldump and cannot be restored by
this application.
How do I get this working?
If the database you want to restore doesn't already exist, you need to create it first.
On the command-line, if you're in the same directory that contains the dumped file, use these commands (with appropriate substitutions):
C:\> mysql -u root -p
mysql> create database mydb;
mysql> use mydb;
mysql> source db_backup.dump;
It should be as simple as running this:
mysql -u <user> -p < db_backup.dump
If the dump is of a single database you may have to add a line at the top of the file:
USE <database-name-here>;
If it was a dump of many databases, the use statements are already in there.
To run these commands, open up a command prompt (in Windows) and cd to the directory where the mysql.exe executable is (you may have to look around a bit for it, it'll depend on how you installed mysql, i.e. standalone or as part of a package like WAMP). Once you're in that directory, you should be able to just type the command as I have it above.
You simply need to run this:
mysql -p -u[user] [database] < db_backup.dump
If the dump contains multiple databases you should omit the database name:
mysql -p -u[user] < db_backup.dump
To run these commands, open up a command prompt (in Windows) and cd to the directory where the mysql.exe executable is (you may have to look around a bit for it, it'll depend on how you installed mysql, i.e. standalone or as part of a package like WAMP). Once you're in that directory, you should be able to just type the command.
mysql -u username -p -h localhost DATA-BASE-NAME < data.sql
look here - step 3: this way you dont need the USE statement
When we make a dump file with mysqldump, what it contains is a big SQL script for recreating the databse contents. So we restore it by using starting up MySQL’s command-line client:
mysql -uroot -p
(where root is our admin user name for MySQL), and once connected to the database we need commands to create the database and read the file in to it:
create database new_db;
use new_db;
\. dumpfile.sql
Details will vary according to which options were used when creating the dump file.
Run the command to enter into the DB
# mysql -u root -p
Enter the password for the user Then Create a New DB
mysql> create database MynewDB;
mysql> exit
And make exit.Afetr that.Run this Command
# mysql -u root -p MynewDB < MynewDB.sql
Then enter into the db and type
mysql> show databases;
mysql> use MynewDB;
mysql> show tables;
mysql> exit
Thats it ........ Your dump will be restored from one DB to another DB
Or else there is an Alternate way for dump restore
# mysql -u root -p
Then enter into the db and type
mysql> create database MynewDB;
mysql> show databases;
mysql> use MynewDB;
mysql> source MynewDB.sql;
mysql> show tables;
mysql> exit
If you want to view the progress of the dump try this:
pv -i 1 -p -t -e /path/to/sql/dump | mysql -u USERNAME -p DATABASE_NAME
You'll of course need 'pv' installed. This command works only on *nix.
I got it to work following these steps…
Open MySQL Administrator and connect to server
Select "Catalogs" on the left
Right click in the lower-left box and choose "Create New Schema"
MySQL Administrator http://img204.imageshack.us/img204/7528/adminsx9.th.gif enlarge image
Name the new schema (example: "dbn")
MySQL New Schema http://img262.imageshack.us/img262/4374/newwa4.th.gif enlarge image
Open Windows Command Prompt (cmd)
Windows Command Prompt http://img206.imageshack.us/img206/941/startef7.th.gif enlarge image
Change directory to MySQL installation folder
Execute command:
mysql -u root -p dbn < C:\dbn_20080912.dump
…where "root" is the name of the user, "dbn" is the database name, and "C:\dbn_20080912.dump" is the path/filename of the mysqldump .dump file
MySQL dump restore command line http://img388.imageshack.us/img388/2489/cmdjx0.th.gif enlarge image
Enjoy!
As a specific example of a previous answer:
I needed to restore a backup so I could import/migrate it into SQL Server. I installed MySql only, but did not register it as a service or add it to my path as I don't have the need to keep it running.
I used windows explorer to put my dump file in C:\code\dump.sql. Then opened MySql from the start menu item. Created the DB, then ran the source command with the full path like so:
mysql> create database temp
mysql> use temp
mysql> source c:\code\dump.sql
You can try SQLyog 'Execute SQL script' tool to import sql/dump files.
Using a 200MB dump file created on Linux to restore on Windows w/ mysql 5.5 , I had more success with the
source file.sql
approach from the mysql prompt than with the
mysql < file.sql
approach on the command line, that caused some Error 2006 "server has gone away" (on windows)
Weirdly, the service created during (mysql) install refers to a my.ini file that did not exist. I copied the "large" example file to my.ini
which I already had modified with the advised increases.
My values are
[mysqld]
max_allowed_packet = 64M
interactive_timeout = 250
wait_timeout = 250
./mysql -u <username> -p <password> -h <host-name like localhost> <database-name> < db_dump-file
You cannot use the Restore menu in MySQL Admin if the backup / dump wasn't created from there. It's worth a shot though. If you choose to "ignore errors" with the checkbox for that, it will say it completed successfully, although it clearly exits with only a fraction of rows imported...this is with a dump, mind you.
One-liner command to restore the generated SQL from mysqldump
mysql -u <username> -p<password> -e "source <path to sql file>;"
Assuming you already have the blank database created, you can also restore a database from the command line like this:
mysql databasename < backup.sql
You can also use the restore menu in MySQL Administrator. You just have to open the back-up file, and then click the restore button.
If you are already inside mysql prompt and assume your dump file dump.sql, then we can also use command as below to restore the dump
mysql> \. dump.sql
If your dump size is larger set max_allowed_packet value to higher. Setting this value will help you to faster restoring of dump.
How to Restore MySQL Database with MySQLWorkbench
You can run the drop and create commands in a query tab.
Drop the Schema if it Currently Exists
DROP DATABASE `your_db_name`;
Create a New Schema
CREATE SCHEMA `your_db_name`;
Open Your Dump File
Click the Open an SQL script in a new query tab icon and choose your db dump file.
Then Click Run SQL Script...
It will then let you preview the first lines of the SQL dump script.
You will then choose the Default Schema Name
Next choose the Default Character Set utf8 is normally a safe bet, but you may be able to discern it from looking at the preview lines for something like character_set.
Click Run
Be patient for large DB restore scripts and watch as your drive space melts away! 🎉
Local mysql:
mysql -u root --password=YOUR_PASS --database=YOUR_DB < ./dump.sql
And if you use docker:
docker exec -i DOCKER_NAME mysql -u root --password=YOUR_PASS --database=YOUR_DB < ./dump.sql

Linux - Import SQL File Into Non-Existant Database

Normally I have database already created. So this command line works find:
mysql -h -u -p [databaseName] < dump.sql
I have an import.sql file that has a top query that creates the database, if it doesn't already exist.
Is there a way to import the sql file, but without needing to select a pre-existing database?
Invoke the commandline without specifying the database
mysql -h -u -p < dump.sql
inside dump.sql, after you create the database add
USE databasename;
While creating the dump file using mysqldump you can use the switch --add-drop-database. This will include a statement to drop the database first. So in the subsequent statement, a fresh database will be created since no database with the given name exists
See mysql documentation for more

Backing up a MySQL database and restoring it under another name

I am trying to do some maintenance on MySQL database data and I created a dump file with the backed up current database.
I want to restore all that data into another database called something like original_db_name_test
Is there a command for that?
This depends on how you invoked mysqldump
If you used mysqldump dbname, then your dump contains neither CREATE DATABASE nor USE DATABASE.
Just create the database with the new name and feed the dump to mysql -D new_dbname.
If you used mysqldump --database dbname, then the dump contains CREATE DATABASE and USE DATABASE statements.
You need to comment them out or replace with new_dbname.
mysql -u usernamehere -p original_db_name_test < yourdumpfilehere.sql
If you used mysqldump to create the dump file, simply:
Create a new database (use the mysqladmin command line tool - "mysqladmin create [new database name]").
Edit the dump file to add a "USE [new database name];" at the top. (There might be an existing use statement that's commented out, so you can change this and un-comment it.)
Import the dump into the new table via "mysql -u <user name> -p < [dump file name]".
Incidentally, when creating a dump via mysqldump, I'd be tempted to use the "--add-drop-table" option, as this will cull any existing table with the same name prior to issuing the table creation statement.
you can use the 'MySQL Workbench' Application and do this with a nice gui

Execute SQL script to create tables and rows

I have a database that I created using the CREATE DATABASE statement in the terminal and I have a .sql file full of statements creating tables and rows.
I just wanted to know what was the command line to execute that .sql on the database I created?
In the MySQL interactive client you can type:
source yourfile.sql
Alternatively you can pipe the data into mysql from the command line:
mysql < yourfile.sql
If the file doesn't specify a database then you will also need to add that:
mysql db_name < yourfile.sql
See the documentation for more details:
Executing SQL Statements from a Text File
If you have password for your dB then
mysql -u <username> -p <DBName> < yourfile.sql

Problem in importing database in MySQL

I have a .sql file with some database backups inside. Now I want to restore them back to MySQL. How can I this using command line of MySqL please? I found this:
mysql -u username -p -h localhost database_name < dumpfile.sql
but I don't know what username should be, what database_name should be and how I could browse to a .sql file in another folder.
You need to replace username with your database username and it will prompt you for a password. If the dump file has the "create database [name];" and "use [name];" instructions then you dont need to specify the database_name attribute.
To pull the .sql from another folder you just need to specify the path (/home/user/Downloads/file.sql, for example).
You could also try downloading mysql administrator from the mysql website.
Check this link too
http://www.techiecorner.com/31/how-to-restore-mysql-database-from-sql-dump-file/
Redirecting a .sql file into the MySQL CLI works because that's the format that mysqldump produces. And people usually call mysqldump to dump a whole database, so they get one file afterwards.
The username and password are dependant on what's been setup on the database instance you want to reload the data in to. On a clean, empty install, the MySQL root user will work (and probably won't have a password). On an established install, you should find an appropriate user. The user you use will need substantial permissions as it needs to create and write to tables.
The .sql file may have CREATE database and USE database statements near the top. If this is present, then make sure that database does not exist before you pipe the file in. If not, you will need to find out what name is expected by whatever program will be using the database.
As for piping another file in in a different directory, this is simple shell notation. The < filename notation fully supports paths so you can do < some/other/path/filename.sql or < ~/sql/filename.sql, for example. (Note that I've assumed you're using a Unix shell.)
You can use cmd
type cmd run as adminstration (C:\windows\system32>)
give path of mysql of bin folder (C:\windows\system32>
cd `C:\xampp\mysql\bin)
C:\xampp\mysql\bin>mysql -u username -p -h localhost database_name
type-> use database_name
type-> source F:/example.sql