the process of moving databases or data from one place to another

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1answer
64 views

Best way to transfer millions of rows from one database to other

There are two databases: DatabaseA and DatabaseB with the same schema. These databases have millions of rows. The plan is to convert them into one single database (DatabaseCommon) and multiple ...
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2answers
36 views

Migrate MySQL tables to new server with same tables already on it?

We migrated our web server to a newer server. We have the old and new both running while we do testing on the new one. The old one is still being used in production by our clients and internal staff ...
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1answer
85 views

mysql workbench migration changed my database. Can I trust it?

I'm migrating a large production database(s) from mysql 5.5 to 5.6. Used Mysql Workbench Migration Wizard which creates a shell script to run on source and taget machines. The process worked well but ...
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2answers
3k views

SQL Server to Oracle export using Microsoft OLEDB Provider for Oracle

I am trying to Export Data from SQL Server to Oracle using the "Microsoft OLEDB Provider for Oracle". I am using "Export Data..." option from Task menu. I get to connect to the source database (SQL ...
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1answer
216 views

Can Unicode columns include non-Unicode values in SQL Server?

I need to convert Unicode column values from UTF16-LE to UTF-8 to then import into MySQL. Is it safe to assume columns of NVARCHAR, NTEXT, NCHAR, BIT, INT, DECIMAL, FLOAT, and DATETIME all must be ...
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0answers
125 views

Options to migrate large database from Sybase ASE to SQL Server with minimum downtime

The problem: Our server database contains 1TB of data. It runs on a Sybase ASE 15.7 server and shall be migrated to SQL Server 2014. The servers will be located in the same data center during ...
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4answers
10k views

Open source tools for Oracle schema compares [closed]

I'm looking for an open source tool to generate DDL scripts. Many tools call these synchronization scripts. We essentially want to compare schema of different environments (ie: DEV to QA, QA to PROD)...
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1answer
85 views

Move data from 4 shard, replicated mongodb cluster to a single server without downtime

I need to move sharded data from four replica sets to a single remote machine without downtime. Can you describe the process step by step?
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0answers
65 views

MySQL performance issue after migration

I have a MySQL performance issue with a brand new server, and am somewhat of a beginner as a database administrator (I'm mostly a general-purpose Linux sysadmin). I'm looking for pointers where to ...
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1answer
69 views

Is replication a suitable method to move a SQL Server database to new hardware?

I need to move a live database with about 100 GB of data to a new machine. As I understand the easiest way to do that would be to take it offline, move the files and bring it back online. But: The ...
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2answers
782 views

Is there a penalty for using BINARY(16) instead of UNIQUEIDENTIFIER?

I've recently inherited a SQL Server database that uses BINARY(16) instead of UNIQUEIDENTIFIER to store Guids. It does this for everything including primary keys. Should I be concerned?
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1answer
225 views

Migrating from Oracle to MySQL via MySQL workbench: Table list is empty

MySQL workbench offers a migration tool that I'm using to migrate an Oracle database to MySQL. I'm using the migration wizard to migrate the complete Oracle schema to MySQL. I used that for the ...
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0answers
61 views

How do I disable constraint checking during schema migration?

How do I disable FOREIGN KEY checking for the time of database schema migration? Currently I found engine-based commands like: PostgreSQL: SET CONSTRAINTS ALL DEFERRED; MSSQL: EXEC ...
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1answer
39 views

Replace content of only one table with new version (should disable foreign keys?)

I have 2 tables. 2nd has foreign keys to reference 1st. I need to replace the whole content of the 1st table with the new version from another database. The new version satisfies all constraints and ...
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0answers
31 views

SQL Server 2000 Migration on Production [duplicate]

I have a couple databases on server1 and I want to put them on server2. Application is adding new data in every couple of minutes to databases on server1. I would like to not switch off application ...
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1answer
10k views

Best practices for schema changes and data migrations to a live database without downtime?

How do you make schema changes to a live database without downtime? For instance, lets say I have a PostgreSQL database with a table including various user data like email addresses etc, all ...
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1answer
45 views

Migrate Postgres from VM to VM

I have 2 VMs, both are identical in structural terms (came from the same snapshot, nothing installed, upgraded or removed). One VM is "clean", never used. The other VMs was heavily used and it has ...
2
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1answer
100 views

SQL Server Database Migration - Backup/Restore while Original DB still in Production

I have a very large DB in full recovery mode. My SQL Server is 2008 R2. The thing is that I need to migrate to a new server while having the original DB still in production. Both backup and restore ...
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0answers
87 views

How to speedup pg_dump big database

I've got big database (about 900GB), and when I migrate it to new server dump speed is not more than 2MB/s (very slow). Link between servers is 10Gb/s. The database contain 20 tables with different ...
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5answers
17k views

Are SQL Server in-place upgrades as ill advised as they used to be?

I have been working with SQL server on and off since SQL Server 6.5, the old advice that still rings in my head was never to do an in-place upgrade. I'm currently upgrading my 2008 R2 DEV and TEST ...
3
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1answer
45 views

How to handle Schedules when moving Jobs to another server?

We are migrating our SQL Server 2008 R2 to another physical server. For this, I will script out all jobs and run it on the target server. My question is about handling the schedules: When a job is ...
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1answer
197 views

Don't delete exist data with SSMA

I'm trying to use Microsoft's SQL Server Migration Assistant for Sybase 5.3 ('SSMA') to migrate multiple Sybase databases (that have the same schema) to a single MSSQL database. The first database ...
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3answers
2k views

Migrate SQL Server database to multiple files (shrinkfile emptyfile vs log shipping)

I have a SQL Server 2008 database in production that we are moving onto a new server. The current database has a single ~400GB .MDF file. The new server will be running SQL Server 2012, and we are ...
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0answers
31 views

Slony PostgreSQL replication from Chile to US (between datacenters)

We are moving from a datacenter in Chile to one in AWS (in USA). We've already moved most of our servers but the database (PostgreSQL). As the source server is in a VMWARE environment, we took a copy ...
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2answers
30 views

Migrating Pure PHP Site with Associated Database To New Server

First, let me say I'm not a DBA or network admin, but have moved large scale CMS websites from host to host. But, I have never moved a pure php coded database driven website from one host to another. ...
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1answer
66 views

MS SQL Server IP address change considerations

I am very new to MS SQL Server Administration and wants to learn on Migration of SQL Server in detail. We are in a Datacenter migration Project where the Windows server (SQL Server is residing in it) ...
3
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1answer
56 views

Agent shows disabled(although it is not) after migration

I am migrating our old server to a more reliable and powerful new server. SQL Server edition and build number stays the same (SQL Server 2008 R2 Standard). For this I followed the steps given in this ...
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1answer
217 views

Migrate/Export DB from Oracle 11g Enterprise to Oracle 11g Express

So I'm a DBA newbie and I've got an Oracle Enterprise server running in production with the following information under All Reports -> Data Dictionary Reports -> Version Banner, under "...
0
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2answers
94 views

Database Migration - Can it be this easy?

We have an old SQL Server 2008 server that needs to be replaced, and as the sole developer (and by extension DBA), I have been asked to figure out the best way to move the 5 databases to a new server. ...
0
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1answer
97 views

How to skip/ignore duplicate records on insert based on a generated string

I have hundreds of millions of rows in one table (snapshots_old) and I want to copy it to another table (snapshots), with one new column (snapshot_id) for which values will be generated while ...
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6answers
1k views

Move SQL Server 2008 database from machine A to B with no downtime

I got a bit of a problem. I have a SQL Server database in box A which has approximately 60gb of data. I need to move this to a new machine but I cannot have downtime at all. Every second that goes by ...
2
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1answer
66 views

Migrate a schema structure from one server to another MySQL

We have two Database environment server (Development and Production). Production DB is already being used in Production(means it already has production data etc.). My question is, is it possible to ...
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1answer
314 views

Migrating Oracle to MySQL: MySql Workbench Not Available

I am currently trying to migrate information from a query of a remote Oracle database to a local MySQL database. I have poked around and have found it has been frequently suggested to use the ...
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1answer
68 views

Migrating a database from one PostgreSQL server to another cleanly

I have a Rails app server that uses Postgres for the DB backend. I'm spinning up a new server and I want to get a clean and up to date copy of the database. I've tried it once so far while the ...
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0answers
35 views

Which would be a recommended approach for migrating a Postgresql database from one server to another?

We are moving out of our current dataserver based on Santiago, Chile to Amazon (AWS) in North Carolina, all other servers have been successfully migrated with no problem, but our "migration consultant ...
3
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2answers
2k views

Schema Migration: SQL Server Data Tools vs Liquibase and Flyway

This might seem like a stupid question, but I've been looking into open source solutions for schema migration, namely Liquibase and Flyway. However, my boss told me that SQL Server Data Tools (SSDT) ...
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2answers
4k views

Best way to migrate a huge SQL Server database with low downtime over network

Problem definition Our database server needs to be transferred to an other datacenter. It runs on Microsoft SQL Server 2012 Enterprise (64-bit) and contains two databases of about 2TB and 1TB. ...
0
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0answers
18 views

Temporary migration to a new server for firmware upgrade

I need to temporarily migrate an SSRS deployment to a new server so that I can perform a firmware upgrade on the server. Once the firmware upgrade has been completed, I will move SSRS back to its ...
0
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0answers
28 views

Data Base Migration - Adaptative Server Anywhere to Maria DB

I need to migrate a data base which is in my local computer to a on-line server. The RDBMS used in my local computer is Adaptative Server Anywhere 9.0.2.2451 while the RDBMS used on the server is ...
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1answer
68 views

Final steps of data center migration

Just to preface this, I am just a developer with some DBA experience but not an expert. We are migrating from one data-center to another. Basically we are doing this: Create a full copy of ...
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1answer
1k views

How to migrate old Oracle ASM disks

We have EMC CLARiiON disks that are near their end of support, so we need to move Oracle ASM disks to a new sets disks. We are trying to minimize the database down time, so I am trying to find ways ...
4
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4answers
429 views

Migrating Large Database from SQL Server 2008 to 2014

I currently have on a large database (~500GB) on SQL Server 2008 that is going to be relocated to a new SQL Server 2014 server. My aim is to keep migration time down to a minimum. Migrating the ...
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0answers
22 views

Migrating a DB of mysql 5.0 to 5.5

Sorry this is a newbie question. I have a DB of mysql 5.0 on a shared host and I would like to migrate this DB to another mysql server (5.5) on another shared host. What I did is like this. ...
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2answers
43k views

What is the easiest way to move data from Oracle to SQL Server?

One of our products supports both Oracle and SQL Server as database backend. We have a customer who wishes to switch from an Oracle backend to Microsoft SQL Server, which isn't a typical transition ...
8
votes
2answers
10k views

What is a good way to copy data from one Cassandra ColumnFamily to another on the same Keyspace (like SQL's INSERT INTO)?

Trying to find a way to easily transfer all the rows from a Cassandra ColumnFamily/Table to another. The COPY command, as I understand, is a good option. However, as it dumps all the data to .csv on ...
0
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0answers
36 views

How to Normalize dump table, Perform-query, Perform-database Mysql

I need to migrate information hosting provider to our own systems, in this context I pose the following: The vendor provided us with history of transactions totaling approximately 7.5 million ...
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2answers
327 views

Loop through tables or copy paste

I have to do a migration where I should retrieve data from 40 Access tables, which should contain several of the same columns (but not all, the schemas are different). To make it simpler, I used SSMA ...
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5answers
2k views

Archiving of old data

We're currently running into some performance problems since our database is getting too big. There are data stored from the last 10 years and I don't see a reason why the data older than 2 years have ...
0
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1answer
71 views

Microsoft SQL migration full/diff backup/restore

I would like to move a database from one physical location to another. I already have a copy of the full database backup at the new location which is done by a nightly SQL job and is about 20GB. If I ...
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2answers
28k views

How to migrate Oracle database to MySQL server? [closed]

Currently our application is running using Oracle 11g database. We are developing newer version of the application which runs on MySQL cluster. We need to migrate the data from Oracle database to ...