SQuirreL SQL - SQuirreL SQL is an open-source Java SQL Client program for any JDBC compliant database
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SQL Developer - Oracle SQL Developer is a free, development environment that simplifies the management of Oracle Database in both traditional and Cloud deployments.
Fieldbook - Create a database, as easily as a spreadsheet
PL/SQL Developer - PL/SQL Developer is an Integrated Development Environment that is specifically targeted at the...
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.