5 Free SQL Editor – Query Large Database, Migrate And Sync Remotely

Updated: September 2, 2019 / Home » The Web » Web Tools, Services, and Resources

Sometimes you need to perform large query but the server has some limitation on processing power, this is where these free SQL editors come in handy. It allows you to perform the necessary query and changes locally on your computer and then upload the final file.

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Alternatively, these XAMPP like PHP development environment software also allows you to modify and edit SQL, only with extra steps when it comes to syncing it. RazorSQL is a popular SQL editor, however, it is not free. Below is the complete list of open source free SQL editor.

↓ 01 – HeidiSQL | Windows


HeidiSQL is free software, and has the aim to be easy to learn. “Heidi” lets you see and edit data and structures from computers running one of the database systems MariaDB, MySQL, Microsoft SQL or PostgreSQL. Invented in 2002 by Ansgar, with a development peak between 2009 and 2013, HeidiSQL belongs to the most popular tools for MariaDB and MySQL worldwide.

  • Connect to servers via commandline
  • Connect via SSH tunnel, or pass SSL settings
  • Export table rows as CSV, HTML, XML, SQL, LaTeX, Wiki Markup and PHP Array
  • Browse and edit table-data using a comfortable grid
  • Bulk edit tables (move to db, change engine, collation etc.)
  • Batch-insert ascii or binary files into tables
  • Write queries with customizable syntax-highlighting and code-completion
  • Pretty reformat disordered SQL
  • Monitor and kill client-processes
  • Find specific text in all tables of all databases of one server
  • Optimize and repair tables in a batch manner

↓ 02 – SQuirreL SQL | Windows | macOS | Linux

SQuirreL SQL

SQuirreL SQL Client is a graphical Java program that will allow you to view the structure of a JDBC compliant database, browse the data in tables, issue SQL commands etc. In theory SQuirreL should work with any DBMS that has a JDBC 2.0 driver. However not all drivers/DBMS’s are fully complient with the JDBC 2.0 specification. People have reported SQuirreL working with the following.

  • Axion Java RDBMS.
  • Daffodil (One$DB)
  • Apache Derby (formerly Cloudscape) see Using SQuirreL SQL with Derby written by Susan Cline.
  • Fujitsu Siemens SESAM/SQL-Server with the SESAM/SQL JDBC driver.
  • Firebird with the JayBird JCA/JDBC Driver.
  • FrontBase
  • HSQL.
  • Hypersonic SQL.
  • H2
  • IBM DB2 for Linux, OS/400 and Windows.
  • Informix.
  • CA Ingres 2.6 SP2 with EDBC driver v1.8 (probably works with Caribou Lake driver too).
  • InstantDB.
  • Interbase with the Interclient JDBC driver.
  • Mckoi SQL.
  • Microsoft Access with the JDBC/ODBC bridge.
  • Microsoft SQL Server with the Microsoft, WebLogic and jTDS JDBC drivers.
  • Mimer SQL
  • MySQL with the MM MySQL JDBC driver.
  • Netezza Data Warehouse with 4.0.4P2 Driver
  • Oracle 8i, 9i and 10g with the Oracle thin and OCI drivers.
  • Pointbase.
  • PostgreSQL 7.1.3 and higher.
  • Progress OpenEdge 10.1x.
  • SAPDB.
  • Sybase with the JConnect JDBC driver. There are currently some issues with Sybase JConnect 5.5 and SQuirreL 1.1 although JConnect 4.5 seems to work.
  • Teradata Warehouse
  • ThinkSQL RDBMS.
  • Vertica Analytic Database
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↓ 03 – MySQL Workbench | Windows | macOS | Linux

MySQL Workbench

MySQL Workbench is a unified visual tool for database architects, developers, and DBAs. MySQL Workbench provides data modeling, SQL development, and comprehensive administration tools for server configuration, user administration, backup, and much more. MySQL Workbench is available on Windows, Linux and Mac OS X.

MySQL Workbench now provides a complete, easy to use solution for migrating Microsoft SQL Server, Microsoft Access, Sybase ASE, PostreSQL, and other RDBMS tables, objects and data to MySQL. Developers and DBAs can quickly and easily convert existing applications to run on MySQL both on Windows and other platforms. Migration also supports migrating from earlier versions of MySQL to the latest releases.

↓ 04 – Execute Query | Windows | Linux

Execute Query

Execute Query is an operating system independent database utility written entirely in Java. Using the flexibility provided by Java Database Connectivity (JDBC), Execute Query provides a simple way to interact with almost any database from simple queries to table creation and import/export of an entire schema’s data.

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The Query Editor allows for the execution of any SQL statement(s) that the database and driver may accept from creating tables to basic SELECT statements and table updates. The results of any executed statement is displayed in the results pane including database specific messages and error codes.

  • Generate ERD: Allows for the creation of a database ERD either from scratch or from an existing schema. The diagram may be manipulated and saved in multiple image formats.
  • Compare Data Types: Compares data types across different database connections providing useful mapping when porting a schema across different database types.
  • Create Table: Allows for the creation of database tables via a graphical interface.
  • Create Index: Allows for the creation of an index on a table via a graphical interface.
  • Generate Scripts: This feature allows you to generate complete CREATE TABLE scripts for the connected schema including all table constraints.
  • Import/Export Data: Allows for the import and export of data to and from delimited files.
  • Import/Export XML Data: Allows for the import and export of data from one or multiple tables to and from XML files. The table and column names provide the XML tags.

↓ 05 – Oracle SQL Developer | Windows | macOS | Linux

Oracle SQL Developer

Oracle SQL Developer is a free, integrated development environment that simplifies the development and management of Oracle Database in both traditional and Cloud deployments. SQL Developer offers complete end-to-end development of your PL/SQL applications, a worksheet for running queries and scripts, a DBA console for managing the database, a reports interface, a complete data modeling solution, and a migration platform for moving your 3rd party databases to Oracle.

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