I am wondering if someone knows how to export only the table SQL from a db2 database. I want a file that has the SQL to recreate the table without the data in another database environment.
I need this a query. I know db2look has the capability but, I need a query I can run in the database to do this.
Because you don't have privileges to run db2look? You're going to need SELECT privileges on the system catalog tables anyway. And depending on what you try to do, you might also need sysadm, sysctrl, sysmaint, or dbadm.
Metadata is in the SYSIBM schema. The answers here should point you in the right direction.
Related
A colleague of mine has given me a task to ensure all table name and pages in a stored procedure contains the relevant schemas?
For example if I have a table in a database that is dbo.table1, then in a query if I have:
Select * from table1
He wants me to change it to:
Select * from dbo.table1
This is same for pages that start with Support.
What is the significance of adding in a scheme like dbo. At the start when manually writing SQL? Is it suppose to be better for performance as it seems to know where the tables even if I don't include .dbo at the start?
I'm using SQL server 2012 and its management studio.
Thank you
You may not notice the performance if you write the schema in all of your queries. If you don't specify it, the engine will look through all of your schemas in your databases ( I'm not pretty sure if the engine will check the sys schemas too ) until it finds the table you're getting the data; It's recommended as a best practice to write it because you are telling to the engine what schema need to search the table.
I hope this answer was helpful.
dbo is the schema which is used as part naming convention for tables in a mssql database
look at this post SQL Server edits the table name with dbo as prefix
I have a database called AQOA_Core with huge amount of data.
I have a newly created database called AQOA_Core1 which is basically empty. I want to write a query to duplicate AQOA_Core to AQOA_Core1 without the data. I guess to be precise I want to create a skeleton of the primary database into the secondary database.
PS: I use Toad for my database operations.
You can use SQL Server Script Wizard for scripting database objects. You can exclude data, and select the database object types you want to include in your script
Please check the SQL Server guide I referenced above,
I hope it helps you
I am new to access. I am using a tool/access database someone built, and it has an ODBC connection to an Oracle SQL database in it.
There are different queries on the side panel, and some of them are delete queries.
If I run these delete queries will they just modify data in my local access database without modifying the data in the Oracle Database?
Yes these will change something in the database whether its linked with another access database table or oracle table and within the database. To review the query you can open the queries in design view and run a normal select query so you can see what the queries are deleting. You can have a normal table image and or globe with a arrow in front pointing towards the table then its linked. A lot of times when I am testing I just run select queries and then I make a copy of what I will be deleting just in case anything goes wrong.
In some days ago...i was converting some Large MySQL Database to Oracle 10g R2 by using Oracle SQL Developer database migration tools.But unfortunately it was migrated on system schema.but i need to it on scott schema.
After Googling i found this two links OraFAQ Forum and ASK TOM Q&A.But I cannot find any appropriate answer. Any one Can help me to do , How it is possible.
Thanks In Advance.
IIRC the MySQL backup tool spits out plain SQL. As it would be in the form of fairly vanilla SQL -- just create and insert, I guess -- it ought to be able to be run against your Oracle schema with the minimum of alteration.
Having said that, in the SQL Developer migration wizard, the second step allows you to select the target schema. If you have a connection setup to scott, why doesn't that work for you?
If the table isn't too large (dependent upon your system resources and server horsepower etc.) then you could simply rebuild the table in the desired schema with the following.
N.B. You need to be logged in as either the target schema's user (with select permission on the table in the SYSTEM tablespace) or as system:
CREATE TABLE <newschema>.<tablename>
AS
SELECT *
FROM system.<tablename>;
Then remove the original table once the new table has been created.
If the table is large then you could use DATAPUMP to export and import it into the desired schema.
Here is an article on using Data Pump for this purpose:
http://oraclehack.blogspot.com/2010/06/data-pump-moving-tables-to-new-schema.html
Hope this helps
I would like to copy parts of an Oracle DB to a SQL Server DB. I need to move the data because the Oracle box is being decommissioned. I only need the data for reference purposes so don't need indexes or stored procedures or contstaints, etc. All I need is the data.
I have a link to the Oracle DB in SQL Server. I have tested the following query, which seemed to work just fine:
select
*
into
NewTableName
from
linkedserver.OracleTable
I was wondering if there are any potential issues with using this approach?
Using SSIS (sql integration services) may be a good alternative especially if your table names are the same on both servers. Use the import wizard via and it should create the destination tables for you and let you edit any mappings.
The only issue I see with that is you will need to execute that of course for each and every table you need. Glad you are decommissioning the oracle server :-). Otherwise if you are not concerned with indexes or any of the existing sprocs I don't see any issue in what you are doing.
The "select " approach could be very slow if tables are large. Consider writing pro*C in that case or use Fastreader http://www.wisdomforce.com/products-FastReader.html
A faster and easier approach might be to use the Data Transformation Services, depending on the number of objects you're trying to copy over.