Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>I did some such conversions between various databases using Jython and JDBC.</p> <p>All you need is Informix and PostgreSQL JDBC drivers in <code>CLASSPATH</code>.</p> <p>I have Informix table with <code>BYTE</code> column, and PostgreSQL table with <code>BYTEA</code> column:</p> <pre><code>-- Informix CREATE TABLE _blob_test ( id integer PRIMARY KEY, image BYTE ) -- PostgreSQL CREATE TABLE _blob_test ( id integer PRIMARY KEY, image BYTEA ) </code></pre> <p>Then you can use JDBC <code>getObject()/setObject()</code> methods to copy data:</p> <pre><code>#!/usr/bin/env jython # -*- coding: utf8 -*- from java.sql import DriverManager from java.lang import Class Class.forName("com.informix.jdbc.IfxDriver") Class.forName('org.postgresql.Driver') def copy_table(db_from, db_to): col_count = 2 insert_stmt = db_to.prepareStatement('INSERT INTO _blob_test (id, image) VALUES (?, ?)') pstm2 = db_from.createStatement() pstm2.setFetchSize(10000) rs_in = pstm2.executeQuery('SELECT * FROM _blob_test') try: batch_buffer = 0 batch_size = 100 while (rs_in.next()): for i in range(1, col_count + 1): insert_stmt.setObject(i, rs_in.getObject(i)) insert_stmt.addBatch() batch_buffer += 1 if (batch_buffer % batch_size == 0): insert_stmt.executeBatch() batch_buffer = 0 if (batch_buffer &gt; 0): insert_stmt.executeBatch() finally: rs_in.close() pstm2.close() db_from = DriverManager.getConnection('jdbc:informix-sqli://informix-test:9088/infdb:informixserver=ol_testifx;DB_LOCALE=pl_PL.CP1250;CLIENT_LOCALE=pl_PL.CP1250;charSet=CP1250', 'informix', '12345') db_to = DriverManager.getConnection('jdbc:postgresql://pg-test:5490/pg_test?stringtype=unspecified', 'postgres', '12345') copy_table(db_from, db_to) </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POBlob's migration data from Informix to Postgres
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USMichał Niklas
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload