How can I view the content of a MONETDB tables ?
In WAMP for example I just type localhost in the browser and there i can see
All the tables and databases with their content .
But I'm unable to do so in MONETDB , Or to be more accurate I don't know how .
Plus the documentation doesn't provide info on the matter .
Assuming you've installed it on a machine running linux, you need to first set up a farm using the server daemon (monetdbd), then create a database on said farm using monetdb. You can then set up tables and run SQL queries using the mclient that you can fire up using
mclient -u monetdb databasename
There is a step by step guide to setting up a basic database here: http://www.monetdb.org/Documentation/UserGuide/Tutorial
For windows, you'd have to start the monetdb server and then use the monetdb sql client. This is also detailed in the windows tutorial:
http://www.monetdb.org/Documentation/UserGuide/Tutorial/Windows
You can view the MONETDB Tables by using the following command:
\d
The above command list all the tables in a schema you have logged into.
If you want to check content of a particular table use the below command:
\d TABLE_NAME
Related
Data was sent to our company with PostgreSQL, but we are prohibited to use the tools of PostgreSQL , permitted the use of only Oracle.
How to migrate data from PostgreSQL to Oracle without using a third party application(they are also prohibited)? You can only use the tools of Oracle.
I found this article https://support.oracle.com/knowledge/Oracle%20Database%20Products/2220826_1.html but we don't have Support Identifier
We have one .sql file. It weighs 8 Gigabytes.
It looks like you have so many impediments in your company. Regarding Oracle's SQL Developer Migration Workbench, unfortunately it does not support the migration of PostgreSQL databases. However, the following 3rd-party software tools are available and may assist in migration, but I am afraid you cannot use them as you said that those products are forbidden:
http://www.easyfrom.net/download/?gclid=CNPntY36vsQCFUoqjgodHnsA0w#.VRBHKGPVuRQ
http://www.sqlines.com/postgresql-to-oracle
Other options will only move the data from your Postgresql database to Oracle database, it means that you must have the DDLs of the tables before to run the import:
To move data only, you can generate a flat file of the the
PostgreSQL data and use Oracle SQL*Loader.
Another option to migrate data only is to use Oracle Database
Gateway for ODBC which requires an ODBC driver to connect to the
PostreSQL database, and copy each table over the network using
sqlplus "COPY" or "CREATE TABLE AS SELECT" commands via oracle
database link.
Also, Oracle has discussion forum for migrating non-oracle databases to Oracle.
http://www.oracle.com/technetwork/database/migration/third-party-093040.html
But, if you have only a sql file, you should look at it to see whether you have both DDLs ( create tables and indexes, etc ) and the data itself as insert statements. If so, you need to split it and treat the DDLs to convert the original data types to Oracle datatypes.
I have created the necessary storage plugins and the relevant databases in hive show up when issuing the show database command.
When using one of the hive databases though using the use command, I found that I cannot select any tables which are within that database. Looking further, when issuing the show table command, no tables within that database show up via Apache Drill whereas they appear fine in Hive.
Is there anything I am missing by any chance in terms of granting permission via Hive to any user? How exactly does Apache Drill connect to Hive to run the relevant jobs?
Appreciate your responses.
Show tables; will not list hive tables as of now. It's better to create views on top of hive tables. These Views will show up on show tables; command.
This answer states that we should start OracleService* in order to connect to an Oracle DB.
However, there isn't a OracleService* among the list shown by services.msc.
Is there any other way to connect to an Oracle DB from command line, without using OracleService*?
I have a PostgreSql database and I need to connect it to read data from oracle view and store that data in custom table
The PostgreSql database will connect to oracle everyday automatically to read the latest updates from oracle view
How to create it?
It sounds like you probably want a SQL/MED foreign data wrapper. Check out oracle_fdw. You could also use the generic odbc_fdw or jdbc_fdw wrappers via Oracle's ODBC or JDBC drivers.
Another option is DBI-Link.
Combine these with a cron job if you want to copy to a local view.
I need to export a number of rows (from different tables- ie, all the related information about an entity - for eg: a Customer) to another DB in Oracle. How do we do this? I am using a windows OS. Please help.
Thank you all,
Pradeep
While connected to database 1 you could also create a database link to database 2 (if you have rights to do so - there were no assumptions on this) and insert to your tables by selecting from your link e.g. like this
CREATE DATABASE LINK foo
CONNECT TO <user> IDENTIFIED BY <password>
USING '<connect string>';
select * from table1#foo;
Further information:
A database link is a connection
between two physical database servers
that allows a client to access them as
one logical database.
See Dabtabase links at Oracle Database Administrator's Guide.
You can use Oracle's export and import utilities
You might want to give Data Pump a try as well (depending on your version). Many options for moving around data from Oracle -> Oracle dbs
Another option is the SQL*Plus copy command. It's not very fast, but it can be very convenient in certain contexts.
Oracle's SQL developer tool has the option to export data as insert statements.