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JDBC from Clojure (formerly clojure.contrib.sql)

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clojure.java.jdbc

A Clojure wrapper for JDBC-based access to databases.

Formerly known as clojure.contrib.sql.

Releases and Dependency Information

Latest stable release: 0.2.0

Leiningen dependency information:

[org.clojure/java.jdbc "0.2.0"]

Maven dependency information:

<dependency>
  <groupId>org.clojure</groupId>
  <artifactId>java.jdbc</artifactId>
  <version>0.2.0</version>
</dependency>

Example Usage

(require '[clojure.java.jdbc :as sql])

(def mysql-db {:subprotocol "mysql"
    :subname "//127.0.0.1:3306/clojure_test"
    :user "clojure_test"
    :password "clojure_test"})

(sql/with-connection mysql-db
    (sql/insert-records :fruit
        {:name "Apple" :appearance "rosy" :cost 24}
        {:name "Orange" :appearance "round" :cost 49}))

(sql/with-connection mysql-db
    (sql/with-query-results rows
        ["SELECT * FROM fruit WHERE appearance = ?" "rosy"]
        (:cost (first rows))))

For more detail see the generated documentation on github.

Developer Information

  • GitHub project

  • Bug Tracker

  • Continuous Integration

  • Compatibility Test Matrix

  • Testing:

    • Currently by default tests run only against Derby and HSQLDB, the in-process databases.
  • To test against PostgreSQL, first create the user and database:

    $ sudo -u postgres createuser clojure_test -P # password: clojure_test
    $ sudo -u postgres createdb clojure_test -O clojure_test
    
  • Or similarly with MySQL:

    $ mysql -u root
    mysql> create database clojure_test;
    mysql> grant all on clojure_test.* to clojure_test identified by "clojure_test";
    
  • Then run the tests with the TEST_DBS environment variable:

    $ TEST_DBS=mysql,postgres mvn test
    

Change Log

  • Release 0.2.0 on 2012-04-23
    • Merge internal namespace into main jdbc namespace JDBC-19
  • Release 0.1.4 on 2012-04-15
    • Unwrap RTE for nested transaction exceptions (we already unwrapped top-level transaction RTEs).
    • Remove reflection warning unwrapping RunTimeException (Alan Malloy)
  • Release 0.1.3 on 2012-02-29
    • Fix generated keys inside transactions for SQLite3 JDBC-26
  • Release 0.1.2 on 2012-02-29
    • Handle prepared statement params correctly JDBC-23
    • Add support for SQLite3 JDBC-26
    • Replace replicate (deprecated) with repeat JDBC-27
    • Ensure MS SQL Server passes tests with both Microsoft and jTDS drivers
    • Build server now tests derby, hsqldb and sqlite by default
    • Update README per Stuart Sierra's outline for contrib projects
  • Release 0.1.1 on 2011-11-02
    • Accept string or URI in connection definition JDBC-21
    • Allow driver, port and subprotocol to be deduced JDBC-22
  • Release 0.1.0 on 2011-10-16
    • Remove dependence on deprecated structmap JDBC-15
  • Release 0.0.7 on 2011-10-11
    • Rename duplicate columns JDBC-9
    • Ensure do-preared traps invalid SQL JDBC-16
  • Release 0.0.6 on 2011-08-04
    • Improve exception handling (unwrap RTE)
    • Don't use batch for update (causes exceptions on Apache Derby) JDBC-12
    • Add test suite
  • Release 0.0.5 on 2011-07-18
    • Expose prepare-statement API
    • Allow with-query-results to accept a PreparedStatement or options for creating one, instead of SQL query string and parameters
    • Support databases that cannot return generated keys
  • Release 0.0.4 on 2011-07-17
    • Allow :table-spec {string} in create-table JDBC-4
    • Remove reflection warnings JDBC-8
    • Ensure transactions are not committed when Error occurs JDBC-11
  • Release 0.0.3 on 2011-07-01
    • Key generation compatibility with MS SQL Server, PostgreSQL JDBC-10
  • Release 0.0.2 on 2011-06-07
    • Clojure 1.2 compatibility JDBC-7
  • Release 0.0.1 on 2011-05-07

    • Initial release
  • Changes from clojure.contrib.sql:

    • Expose print-... functions; no longer write exceptions to *out*
    • Define resultset-seq to replace clojure.core/resultset-seq
    • Add naming / quoting strategies (see name mapping documentation
    • Return generated keys from insert operations, where possible
    • Add insert-record function
    • Clojure 1.3 compatibility

Copyright and License

Copyright (c) Stephen Gilardi, Sean Corfield, 2011-2012. All rights reserved. The use and distribution terms for this software are covered by the Eclipse Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php) which can be found in the file epl-v10.html at the root of this distribution. By using this software in any fashion, you are agreeing to be bound by the terms of this license. You must not remove this notice, or any other, from this software.

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