I am trying to use IBM APP Connect Enterprise to connect to a Postgresql Datasource and execute Database complex queries (Complex SELECT, INSERT, UPDATE Statements)
All I can find is the loopback node which is using limited (select, insert and update) statements.
Is there any option that I can include an esql having a PASSTHRU function as the one used with ODBC (Oracle datasources)?
You could use App Connect for the interactions with Postgresql: https://www.ibm.com/docs/en/app-connect/containers_cd?topic=examples-connecting-app-connect-postgresql
You should be able to call your App Connecto flow using a Callable Flow (via the Switch Server): https://www.ibm.com/docs/en/app-connect/12.0?topic=pecf-preparing-environment-split-processing-between-app-connect-enterprise-app-connect-cloud
You should be able to add a postgresql database as an ODBC database through the UnixODBC layer (i.e. add an entry to the odbcinst.ini file), it's not directly supported though, so if you find an issue you'd need to reproduce with a supported database.
I haven't tried it myself yet, I should hopefully have time in the not too distant future.
Searching the internet for "unixodbc postgres odbcinst.ini" gave some good results, which is where I'd start.
Related
I've recently joined a company with a mixed set of databases that include a Redshift cluster and some SQL databases. I'd like to use a single IDE to access both for analytical reporting, so I don't have to switch between tools. I'm currently using workbench, which works, but it's not clicking with me.
I do like Azure Data Studio, but it's SQL Server and Postgres only. Given the similarities between Redshift and Postgres, I thought I'd see if I could connect using the Postgres driver.
I've installed the Postgres extension and can "connect" to the database. However when I try to explore the database using the tree view, I get the error message 'Cannot Expand Node'. When I run a simple query that works in workbench, e.g.
Select * from [server].[database].[table]
I get the following Error message:
Started executing query at Line 1
cursors can only be used within the transaction that created them.
Total execution time: 00:00:00.019
I know I'm trying to do something that shouldn't be done. And if I can't, I can't. But has anyone here managed to get a redshift connection going in Azure Data Studio?
FWIW, I've come across a GitHub Repository that may be a Redshift driver for data studio - but this looks like a clone of the Postgres driver, with no activity since march (not even renaming the 'Postgres' titles to Redshift)... and therefore I'm dubious.
Can someone tell me the difference between pgAdmin and postgreSQL? Are both of them one in the same? I can't draw a ER diagram in pgAdmin but was wondering if it's possible in postgreSQL?
Once I downloaded the postgreSQL it automatically downloaded the pgAdmin and the postgreSQL database is not in sight.
The PostgreSQL is a database engine implementing SQL standards. It usually listen as a server on a network tcp port to provide its abilities.
The pgAdmin is a sort of client. You are able to manipulate schema and data on an instance or multiple instances of PostgreSQL engines.
The MS Windows instalation package consists of both PostgreSQL server and PgAdmin client. So far right after the instalation you are able to manage your databases.
PostgreSQL (pronounced as post-gress-Q-L) is an open source relational
database management system ( DBMS ) developed by a worldwide team of
volunteers. PostgreSQL is not controlled by any corporation or other
private entity and the source code is available free of charge.
The pgAdmin package is a free and open source graphical user interface
administration tool for PostgreSQL, which is supported on many
computer platforms.
phpPgAdmin is a web-based administration tool for PostgreSQL written in PHP and based on the popular phpMyAdmin interface
originally written for MySQL administration
Hope you can understand now it well!!
I'm looking to bulk loads millions of rows into a DashDB database. After connecting using the DB2 CLI, I enter a command like:
db2 import from rowsToImport.csv of del insert into MY_TABLE
with results:
SQL0551N "DASHXXX" does not have the required authorization or privilege to
perform operation "BIND" on object "NULLID.SQLUAJ19". SQLSTATE=42501
Is this an inherent limitation with DashDB, or is something configured incorrectly on my client? I get a similar message when trying db2 load:
SQL2019N An error occurred while utilities were being bound to the database.
p.s. I'm aware of the rest client api for DashDB for loading data - I'm asking specifically how/if bulk loads can be done with the DB2 command line as an alternate option.
As per dashDB documentation you can use the Command line processor plus (CLPPlus). It is included in the dashDB driver package and provides a command-line user interface that you can use to connect to the dashDB database, BLUDB. You can use CLPPlus to define, edit, and run statements, scripts, and commands. Please take also a look at Connecting CLPPlus to the dashDB database to see how to connect and use the CLI.
Please note that in CLPPlus: IMPORT, EXPORT and LOAD commands have a restriction that processed files must be on the server: see here. So you should copy the input load file onto the remote server first with SCP. However SSH/SCP protocol should be blocked (not accessible) for a normal dashDB user.
Only geospatial data can be loaded from your local machine to dashDB, using IDA LOADGEOSPATIALDATA command in CLPPlus.
The file to be loaded in dashDB using the above command can be in the local file system, accessible to the CLPPlus user.
Alternative ways to do that are:
dashDB REST API (as you already mentioned). See Load delimited data using the REST API and cURL.
load the csv directly from the dashDB dashboard on Bluemix. See Loading data from the desktop into IBM dashDB.
load the csv using IBM Data Studio. See dashDB large file load using IBM Data Studio.
According to this technote, the package NULLID.SQLUAJ19 belongs to one of the early DB2 10.1 fix packs, so I suspect your client version is 10.1. When attempting to execute the IMPORT command it needs to bind some packages of that older version, since dashDB is DB2 10.5, obvisouly.
You may want to try installing the latest DB2 client fix pack, as the necessary packages may be already bound in the database.
To verify that you could run select pkgname from syscat.packages where pkgschema = 'NULLID' and pkgname like 'SQLUA%' -- you should see "SQLUAK20", which seems to be the corresponding package in DB2 10.5.
If that doesn't work, your other option might be to move to a dedicated dashDB instance, as you won't have sufficient privileges to bind missing packages in the entry-level shared dashDB service.
I know that SQL Server has linked server that allow it to connect to other database and execute query. Now I am using firebird. I wonder if firebird has its "linked server" to access other databases. Thanks!
Firebird doesn't have a linked server feature. There is a limited method for accessing other Firebird databases (either remote or locally) using EXECUTE STATEMENT, however this only supports Firebird database, and you need to provide the data source information on each invocation.
Suppose I have multiple Oracle databases in the same server. Now I want to connect to particular database and query a table just like SQL Server 2008. How to start particular Oracle database?
If you are using SQL*Plus, the most common syntax for opening a connection is
sqlplus user_name/password#tns_alias
In this example TNS_ALIAS is the TNS alias for the particular database you want to connect to (most likely "XE" based on your followups to inium's answer). If you want to connect to a different database, you would need to specify a TNS alias for that specific database.
Note that since you are coming from a SQL Server background, the SQL Server definition of a database is rather different than the Oracle definition. What SQL Server calls a database is similar logically to what Oracle calls a schema (and similar physically to what Oracle calls a tablespace). So when you're dealing with Oracle, it's much more common to have many schemas in a single database than to have a large number of databases on a server. This is particularly true if you're using the Express Edition (Oracle XE) where you're generally limited to one database per machine.
go to cmd and type sqlplus <database-name>/<database-password>
You can use SQL Developer, it's similar to SQL Enterprise Manager 2005. Just create a new connection using the db user name and password.