Drop database which has a "minus" in its name in Postgres - postgres-xl

I've this database named a-b in postgres and I'm unable to delete it using this query drop database "a-b";. The double quotes were supposed to work but sadly, they didn't. I'm using Postgres-XL r1.3.
The error message I receive is:
ERROR: syntax error at or near "-"

You could try renaming it first perhaps? ALTER DATABASE "a-b" RENAME TO adashb; Then follow up with a DROP DATABASE adashb;

This bug is fixed in the latest Postgres-XL 9.5r1.4 release http://files.postgres-xl.org/documentation/release-xl-9-5r1.4.html

Related

ora-65090: operation only allowed in a container database

I am not able to run any query to change to CDB or PDB in SQL plus it shows the above error.
For instance I tried running the query
Alter pluggable database open
and got this error.
ERROR at line 1:
ORA-65090: operation only allowed in a container database
The correct command to change Container is
ALTER SESSION SET CONTAINER = containername;
If you are getting error then you must not be a privileged user
follow up this link for more information
https://docs.oracle.com/database/121/ADMIN/cdb_pdb_admin.htm#GUID-E73BCAED-FF57-474A-A8C5-207D3F465413
I solved it. Though the solution is not a preferable one but it worked for me as of now. I used Database configuration assistant and deleted the pdb in which I getting connected to when logging using sqlplus. I would appreciate some proper solution to this.

Why can I no longer select data from table "groups" with MySQL 8.0

Today I had to rebuild our BugZilla installation. It has been painful, mainly because I unintentionally incurred an upgrade from MySQL 5.7 to MySQL 8.0. Now BugZilla is reporting an SQL syntax error. In an attempt to debug this, I connected directly to the database using the MySQl client and ran the following query:
SELECT * FROM groups;
This results in the error:
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'groups' at line 1
The same query works for any other table, just not "groups". I am exhausted and have no energy left to solve this. I am guessing that MySQL 8.0 introduced "GROUPS" as a keyword. I would appreciate some help.
Upon investigation it turns out that MySQL 8.0 has indeed introduced "groups" as a keyword, and BugZilla needs to be modified to quote the table name in all places. Unfortunately the database code is shared among many different types of database which all use different characters to quote table names.
My final solution was to switch to using PostgreSQL.

Error while runneing select query in sql developer

I am using Oracle SQL Developer version 4.1.0.19.
So this can be a very simple issue but I cannot seem to find the solution anywhere as I have just started using SQL Developer.
I type in this query
create table Student(Stu_id INTEGER,Stu_name VARCHAR(60),Stu_email VARCHAR(60))
select * from Student
And when I Run the SELECT query, I get an error something like this:
Method oracle/jdbc/driver/T4CCallableStatement.isClosed()Z is abstract
I have no idea as to why this is happening , this may be very stupid but I cannot seem to find a solution.
BTW I am using Oracle 11g version.
How did you install SQL Developer? Can you download the zip off of OTN and extract it to a fresh directory and try running it from there?
Your error message indicates something VERY bad is wrong with one of the drivers. Which makes me wonder if you messed with one of the JARs or are attempting to use an old Oracle Client with a THICK connection.

SONAR 3.7.3 database update failure - JDBC Error

After installing SONAR 3.7.3 I received the following error on startup: "o.s.s.p.DatabaseServerCompatibility Database must be upgraded. Please browse /setup"
I then followed instructions to upgrade the databse by navigating to http://:/setup. However, when I click update databse I get the following error
The migration failed: An error has occurred, all later migrations canceled: ActiveRecord::JDBCError: ORA-01430: column being added already exists in table : ALTER TABLE reviews ADD manual_severity NUMBER(1).
Please check the logs.
I can see, as the message suggests that the table reviews already exist and it already contains the column manual_severity, so I'm not sure why its trying to re-add it.
Any ideas?
I would use a backup of the database schema and start the process again from the beginning.
If you don't have a backup, I cannot see any other way than to delete the column in your schema and try to migrate the database again, but you might find a lot of errors of this kind and have to repeat this operation some times. Also, you will never be sure that your DB is Ok.

What causes a JDBC Type 91 error?

I have a web app hosted on BEA Weblogic 10.x with an Oracle 10g database backend.
It works perfectly with one database, but when we make a clone of it and try to use a different WebLogic and Oracle instance we are getting this error:
ERROR - Problem initializing invocation tracking - disabling
tracking xxxxclass.BadTableMappingException: Database column
xxxxPeriodEnding in database yyyyyyy, table zzzzzzz has an
unknown type: JDBC Type 91.
We get it every time we do a query that involves a column of type DATE. There was no ORA-XXXX code in the message.
I can access the database using SQL*Plus using the same access and do selects and updates on the same tables with no errors.
The answer to this question is not just a simple description of what a type 91 error is (although that will help) but what could be causing this given the circumstances described above.
I am using ojdbc14.jar for JDBC on both instances of weblogic.
I have no idea about the error, but have you considered the jdbc jar version and more importantly if the oracle DB needs to be updated.
I faced very weird problems with oracle, and struggled for a while to find at the end that installing some patches for oracle would solve the problem.
Set oracle.jdbc.V8Compatible=true.
This remaps the oracle DATE type to a DATETIME time in JDBC. This parameter was missing on the new Weblogic server.

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