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Firebird (32-bit)

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Download Firebird 2.5.5 (32-bit)

Firebird 2.5.5 (32-bit)

  -  6.7 MB  -  Open Source
  • Latest Version

    Firebird 5.0.0 (32-bit)

  • Operating System

    Windows XP / Vista / Windows 7 / Windows 8 / Windows 10

  • User Rating

    Click to vote
  • Author / Product

    Firebird Project / External Link

  • Filename

    Firebird-2.5.5.26952_0_Win32.exe

  • MD5 Checksum

    58f30f5447462179ab3b641823c6cccc

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system. Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of Firebird 2.5.5 (32-bit).


For those interested in downloading the most recent release of Firebird (32-bit) or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


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  • Firebird 2.5.5 (32-bit) Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

What's new in this version:

Bug fixes:
- IMPROVEMENT: Improve validation and fixup of lost data pages
- Casting DATE to string would break in Dialect 1 in the presence a domain with a CHECK constraint
- A view or subquery with UNION would not use a computed index
- IIF function was preventing the condition from being pushed into the union for better optimization
- Predicate IS [NOT] DISTINCT FROM was not being pushed into unions/aggregates, resulting in sub-optimal plans
- ALTER DOMAIN ... TO would allows the to be specified in the same pattern as domains generated by the system, i.e., matching to 'RDB$[[:DIGIT:]]*'
- MERGE / HASH JOINs would produce incorrect results when VARCHAR join keys differed only by trailing spaces
- The server could hang on simultaneous connection to the Services API and a database
- An invalid internal BLR filter conversion was detected
- Index corruption could occur while inserting data into a long-key-indexed field
- Preparing a query with a PLAN clause in a CTE could crash the server
- A memory leak was detected in Superserver
- MERGE JOIN could be used for expressions involving RDB$DB_KEY
- MERGE JOIN was not being used for more than two streams if they were joined via USING/NATURAL clauses
- Timestamps could be cast to strings that were beyond the valid range for VARCHAR
- The full text of the problem value was not being returned in the message “Problematic key value (attempting to insert duplicate in PK/UK)” when the length of the offending key was 127 characters or longer
- ON CONNECT triggers would sometimes fail to execute
- A request synchronization error could occur while building an expression index
- Bugcheck 167 (invalid SEND request) could occur while working with a GTT from several attachments, using EXECUTE STATEMENT ... ON EXTERNAL and different roles
- EXECUTE STATEMENT using BLOB parameters could result in an “Invalid BLOB ID” error
- The error “invalid BLOB ID” could occur when retrieving MON$STATEMENTS.MON$SQL_TEXT using EXECUTE STATEMENT against an EXTERNAL DATA SOURCE and the argument db_connect was not specified
- Deadlock could occur during attachment
- The server could hang while chasing dead record versions.
- CREATE TABLE would throw an error if a column was being defined with the character set DOS775
- COUNT(DISTINCT ...) was too slow

Windows-Specific:
- Online validation on Windows would fail if the dbname argument contained forward slash ('/') and a concurrent attachment existed that also used '/'
- Embedded server on Windows could hang due to a synchronization problem involving artifact child processes that were not detectable by Firebird
- The Control Panel applet Firebird2Control.cpl would crash in Windows 8

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