I want to delete all rows content from my database using MySQL workbench in my ubuntu openrating system. How can i do this. Ctrl+A is not working
It would be much simpler if you just run a TRUNCATE query on your tables.
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I am new in Docker, I want to get a backup for my postgress database running in docker. All solutions i saw are offering to generate a dump sql script and restore db with running this script. But i dont want to do this? Is it possible backup and restore by migrating binary files of the db?
You can build Postgres image from plain empty Postgres db image. In Dockerfile you add SQL script which runs on db initialization (docker-entrypoint-initdb.d). The SQL script contains dblink to your backed up db and commands create table my_table as select * from my_table#remotedb. After docker build you have image with backup of your original database tables.
I do something similar with Oracle with more complexity (copying only subset of original database, preserving indexes etc.). Oracle docker image differs from PG in some properties but I believe the rough idea is applicable. It is some time ago I worked with PG so I won't advise you how to migrate binary files (though I believe it would be possible too).
I am relatively new to Redshift but have used the SQL Server Management Studio(SSMS) to work with SQL Server.
Now I have a project with Redshift and am using the SQL Workbench to query the Redshift Cluster.
However I dont find an Object Explorer kind of window on the SQL Workbench interface. Is there such a window on the SQL workbench?
Also, how do i select the active Redshift database on the SQL Workbench?
Used to be pretty simple in SSMS(Select the active database from a drowp down option list), but i am lost when it comes to SQL Workbench?
Thanks!
The comment above from #a_horse_with_no_name is correct. The tab you're trying to find is called "Database Explorer" and it can be opened Tools -> Show Database Explorer.
Credit goes to #a_horse_with_no_name for answering first.
I need to export all tables from SQL Server to PostgreSQL.
Try: I tried from SQL Server IDE but at some stage its giving the error about data types are different.
Question:How can I do export of data from SQL Server to PostgreSQL? Is COPY does my job? If yes, then how can I export all tables including records?
You can't export data from MSsql then import to PostgreSql because it is not same syntax, data type, but you can use tool to migration data from mssql to postgreSql,
See more in topic
migrate data from MS SQL to PostgreSQL?
Use https://dbeaver.io/
Create MS SQL and PostgreSQL database connections (login)
Create target tables in PostgreSQL (same structures in MS SQL)
F5 to see new tables
Right-click on new tables -> 'Import Data' -> You will see 'Data Transfer' window
Choose 'Table' type then click 'Next' -> You will see 'Select input object', where you can choose tables from MS SQL connection
Just 'next' and check settings that you need, done :D
First export the schema into a file and run it against PostgreSQL until you've removed all incompatibilities.
You could try to do the same with the data you want to export but you may be better off writing a Python script to migrate it.
There is an absolutely simple way using built-in SSIS tool using Management Studio. You can find the detailed answer here.
Use https://dbeaver.io/ , as An Le mentioned.
After 40 years of DB development, migrating DB data is still a challenge. DBeaver is a free tool to use for data migration. But you still have to migrate the schema.
Exporting data from DBeaver
From contextual menu of your SQLServer database or schema select Tools > Create new Task > Common > Data Export
You will generate SQL insert files or CSV files. For migration between database types use CSV files.
Cons of SQL Server Migration Tool
Unable to migrate rows containing booleans.
Export ended up in errors of migrationg data with Bool columns, complaining that value is not boolean, although both source and destination columns where of boolean type.
Unable to continue with the next tables afer one table migration fails.
SQL Server - A single error stops all migration even for tables that are not related to the initial error.
Configuring the tool over and over again, trying to export your data is a waste of time. SQL Server migration task does not save the configuration of the source and destination connections. And the wizard is not user friendly, spending your time on it is frustrating. I assume the migration project was abandoned for at least 10 years.
This might sound rudimentary but, I have created tables by running queries in Workbench . Now, where are those tables stored on my computer ? Where does workbench stores them ?
On Windows 7, your files should be under C:\ProgramData\MySQL\<your MySQL version>\Data\
I want sql script of postgres 9 database schema which is not on local server. I tried pg_dump command on sql editor of pgAdmin and its not working there. I m not sure where to run that command. Please assist me with the same....
Thanks..
pg_dump is a command line utility; it isn't SQL, so it won't work in pgAdmin or anywhere else that executes SQL.
pgAdmin however does have a facility to do what you want:
Right-click on the database you want to export
Select Backup from the pop-up menu
Chose "format" Plain
Chose "plain option" Only schema
You can also use pgAdmin tool to generate or take plain text Database Backup.
You can generate plain text backup for data or schema only.
I have shared few screen shots, please visit this blog for more details.