I have a Django project connecting to a PostgreSQL database which I develop in PyCharm, and I want to enable PostgreSQL history logging.
There is PSQL_HISTORY env variable set to /home/user/apps/postgres/logs/.pycharm_log, but when I start the project in PyCharm and update some data via the Django Admin (which certainly hits the database) -- nothing gets logged and the file is not created at all.
Is there a way to make PyCharm and PSQL_HISTORY work together as I expected?
'psql' is the name of a specific client tool. Why would a completely different tool use psql's configuration options? If you want to log every statement sent to the server, you could configure that in the server side with log_statement=all.
I am unable to complete Moodle installation. I am hosting the site on NearlyFreeSpeech and using PHP 5.6. Moodle doesnt seem to be able to connect to the database and write any tables.
I created the moodledata folder in /protected/moodledata and moodle is in /public/moodle
I receive this error after accepting the terms and conditions.
Error reading from database
More information about this error
It is usually not possible to recover from errors triggered during installation, you may need to create a new database or use a different database prefix if you want to retry the installation.
Normally my first instinct would point to the config.php file but if it's getting as far as telling you that a connection is established with the database but there's a read error ("Error reading from database"), then that generally means your config.php file is probably healthy, but your database is not.
Firstly, check that you're using one of the following database servers that Moodle is compatible with (minimum version)
PostgreSQL 9.1
MySQL 5.5.31
MariaDB 5.5.31
Microsoft SQL Server 2008
Oracle Database 10.2
source.
Secondly, ensure that the user assigned to access your database in config.php has ALL PRIVILEGES set on that database.
Moving on... If this is a fresh install and you have no data to lose, your best bet is to start with a clean database.
You can either delete your existing database and set up a new one, or you can drop all tables from your existing database.
Option 1. Delete your existing database.
Delete your config.php file
Jump to phpMyAdmin (from the 'actions' tab on the MySQL process page)
Click on "Databases"
Delete your existing database
Hit "Create database" to generate a fresh, empty database
Go to http://your.url/install.php and follow the instructions for a fresh install.
Option 2. Clear your existing database
Jump to phpMyAdmin and run the following query:
DECLARE #sql NVARCHAR(max)=''
SELECT #sql += ' Drop table '+TABLE_SCHEMA+'.'+ TABLE_NAME
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_TYPE = 'BASE TABLE'
Exec Sp_executesql #sql
source.
Then go to http://your.url/install.php and follow the instructions for a fresh install.
If you managed to start with a fresh database and you get the same error, please ensure that you have all the prerequisites available from your host. You can find a list of Moodle PHP requirements here.
The only time I've seen that error is when using the wrong MySQL version. Eg currently MySQL 5.5 is supported but if you have 5.1 you would get that error.
Source: http://realtechtalk.com/moodle_install_error_Error_reading_from_database_-2072-articles
I have got this problem in local instance of SQL Server 2008 R2 on my machine. There are several databases on this instance. But I am not able to see any of them from the object explorer.
I am able to query my databases from the new query window. But not able to see any of them.
Whenever I try to explore the databases I get this error :
Database 'msdb' cannot be opened. It has been marked SUSPECT by recovery. See the SQL Server errorlog for more information. (Microsoft SQL Server, Error: 926).
I have tried
Refreshing the connection
Reconnecting the connection
Restarting the service Sql Server (MSSQLSERVER).
Restarting the SQL Server Management Studio
Restarting my machine
I have also tried combinations of above, but nothing works.
My operating system is Windows 7 Ultimate (64 bit).
SQL Server Management Studio Version is 10.50.2500.0.
I found my answer in this link.
EDIT : Including both the solutions from link because of possible Linkrot in future.
Login with sa account, for both the solutions.
Solution 1
Open new query window
EXEC sp_resetstatus 'DB_Name'; (Explanation :sp_resetstatus turns off the suspect flag on a database. This procedure updates the mode and status columns of the named database in sys.databases. Also note that only logins having sysadmin privileges can perform this.)
ALTER DATABASE DB_Name SET EMERGENCY; (Explanation : Once the database is set to EMERGENCY mode it becomes a READ_ONLY copy and only members of sysadmin fixed server roles have privileges to access it.)
DBCC checkdb('DB_Name'); (Explanation : Check the integrity among all the objects.)
ALTER DATABASE DB_Name SET SINGLE_USER WITH ROLLBACK IMMEDIATE; (Explanation : Set the database to single user mode.)
DBCC CheckDB ('DB_Name', REPAIR_ALLOW_DATA_LOSS); (Explanation : Repair the errors)
ALTER DATABASE DB_Name SET MULTI_USER; (Explanation : Set the database to multi user mode, so that it can now be accessed by others.)
Solution 2
In Object Explorer --> The opened connection item --> rightclick --> Stop
Open Control Panel --> Administrative Tools --> Services
Select Sql Server (MSSQLSERVER) item from services --> rightclick --> Stop
Open C:\Program Files\Microsoft SQL Server\MSSQL10.MSSQLSERVER\MSSQL\DATA
Move MSDBData.mdf & MSDBlog.ldf to any other place
Then Copy this Files Again from new place and put it in older place
C:\Program Files\Microsoft SQL Server\MSSQL10.MSSQLSERVER\MSSQL\DATA
In opened connection in object Explorer --> rightclick --> Start
Then Refresh DataBase.
Then you can Detach the MSDB File
The 2nd solution worked for me.
Note : I had to get "msdb" database mdf and ldf files from another working machine to get it working.
What instantly fixed my issue was to replace existing MSDBData.mdf & MSDBlog.ldf files
in C:\Program Files\Microsoft SQL Server\MSSQL10_50.SQLEXPRESS\MSSQL\DATA. I got these 2 files copied from another working machine, Stopped the SQL service running in my machine, removed the above existing 2 files from their location and added the new 2 copied. Once I restarted the service , issues has been fixed.
Try this
Set the database into single user mode:
Alter database dbname set single_user
Now set the database into emergency mode:
Alter database dbname set emergency
Repair missing log file or corrupted log file with data loss.
DBCC CHECKDB ('dbname', REAPIR_ALLOW_DATA_LOSS)
Now set the db in multi user mode;
Alter database dbname set multi_user
You may loss the data by using this command. It also depends on client's approval. To avoid this you may use some other dedicated software ( As Mentioned here ) to recover from suspect mode.
How can i rename the database in sql Azure?
I have tried Alter database old_name {MODIFY NAME = new_name} but not worked.
Is this feature available in SQL Azure or not?
Just so people don't have to search through the comments to find this... Use:
ALTER DATABASE [dbname] MODIFY NAME = [newdbname]
(Make sure you include the square brackets around both database names.)
Please check that you've connected to master database and you not trying to rename system database.
Please find more info here: https://msdn.microsoft.com/en-US/library/ms345378.aspx
You can also connect with SQL Server Management Studio and rename it in Object Explorer. I just did so and the Azure Portal reflected the change immediately.
Do this by clicking on the database name (as the rename option from the dropdown will be greyed out)
Connect with SQL Server Management Studio to your Azure database server, right-click on the master database and select 'New Query'. In the New Query window that will open type ALTER DATABASE [dbname] MODIFY NAME = [newdbname].
It's Very simple for now - Connect to DB via SQL Management Studio and Just rename as you generally doing for DB [Press F2 on DB name]. It will allow you to do this and it will immediately reflect the same.
I can confirm the
ALTER DATABASE [oldname] MODIFY NAME = [newname];
works without connecting to master first BUT if you are renaming a restored Azure database; don't miss the space before the final hyphen
ALTER DATABASE [oldname_2017-04-23T09 -17Z] MODIFY NAME = [newname];
And be prepared for a confusing error message in the Visual Studio 2017 Message window when executing the ALTER command
Msg 0, Level 20, State 0, Line 0
A severe error occurred on the current command. The results, if any, should be discarded.
You can easily do it from SQL Server Management Studio, Even from the community edition.
I'm trying to connect to a PostgreSQL 9.1 database using Oracle SQL Developer 3.0.04, but I'm not having any success so far.
First, if I add a third party driver on preferences, when adding a new connection there's no tab for PostgreSQL (it works fine for MySQL though). I'm using a JDBC4 version 9.1 driver, but I tried a JDBC3 of the same version and still get the same thing.
Second, there's nothing like manual configuration tab when adding a new connection. The closest is the Advanced option on Oracle tab, where I can provide a custom URL, but it fails because complains about the selected Driver (of course).
Finally, I got connected importing a connection from an XML file (contents below), but it displays only my schemas and doesn't show my tables inside them.
So, my question is: does Orable SQL Developer support PostgreSQL connections? Is there any other way to have my tables being displayed in the ObjectViewer?
<?xml version = '1.0' encoding = 'UTF-8'?>
<References xmlns="http://xmlns.oracle.com/adf/jndi">
<Reference name="Lumea" className="oracle.jdeveloper.db.adapter.DatabaseProvider" credentialStoreKey="Lumea" xmlns="">
<Factory className="oracle.jdeveloper.db.adapter.DatabaseProviderFactory"/>
<RefAddresses>
<StringRefAddr addrType="user">
<Contents>lumea</Contents>
</StringRefAddr>
<StringRefAddr addrType="subtype">
<Contents>thirdParty</Contents>
</StringRefAddr>
<StringRefAddr addrType="customUrl">
<Contents>jdbc:postgresql://localhost:5432/versates</Contents>
</StringRefAddr>
<StringRefAddr addrType="SavePassword">
<Contents>true</Contents>
</StringRefAddr>
<StringRefAddr addrType="password">
<Contents>myencryptedpass</Contents>
</StringRefAddr>
<StringRefAddr addrType="driver">
<Contents>org.postgresql.Driver</Contents>
</StringRefAddr>
<StringRefAddr addrType="DeployPassword">
<Contents>true</Contents>
</StringRefAddr>
</RefAddresses>
</Reference>
</References>
Oracle SQL Developer 4.0.1.14 surely does support connections to PostgreSQL.
download JDBC driver for Postgres (http://jdbc.postgresql.org/download.html)
in SQL Developer go to Tools → Preferences, Database → Third Party JDBC Drivers and add the jar file (see http://www.oracle.com/technetwork/products/migration/jdbc-migration-1923524.html for step by step example)
now just make a new Database Connection and instead of Oracle, select PostgreSQL tab
Edit:
If you have different user name and database name, one should specify in hostname: hostname/database? (do not forget ?) or hostname:port/database?.
(thanks to #kinkajou and #Kloe2378231; more details on https://stackoverflow.com/a/28671213/565525).
I've just downloaded SQL Developer 4.0 for OS X (10.9), it just got out of beta. I also downloaded the latest Postgres JDBC jar. On a lark I decided to install it (same method as other third party db drivers in SQL Dev), and it accepted it. Whenever I click "new connection", there is a tab now for Postgres... and clicking it shows a panel that asks for the database connection details.
The answer to this question has changed, whether or not it is supported, it seems to work. There is a "choose database" button, that if clicked, gives you a dropdown list filled with available postgres databases. You create the connection, open it, and it lists the schemas in that database. Most postgres commands seem to work, though no psql commands (\list, etc).
Those who need a single tool to connect to multiple database engines can now use SQL Developer.
Oracle SQL Developer doesn't support connections to PostgreSQL. Use pgAdmin to connect to PostgreSQL instead, you can get it from the following URL
http://www.pgadmin.org/download/windows.php
I managed to connect to postgres with SQL Developer.
I downloaded postgres jdbc driver and saved it in a folder.
I run SQL Developer -> Tools -> Preferences -> Search -> JDBC
I defined postgres jdbc driver for the Database and Data Modeler (optional).
This is the trick.
When creating new connection define Hostname like localhost/crm? where crm is the database name. Test the connection, works fine.
If there is no database with the same name as the username, then clicking "Choose Database" will fail with an error like "Status : Failure -FATAL: database "your_username" does not exist"
To work around this, put 5432/database_name? in the Port field, where 5432 is the port of your Postgres instance and database_name is the name of at an existing database that your_username has access to. Then click "Choose Database" again and it should work. Now you can choose the database you want and remove the extra /database_name? from the Port field.
I think this question needs an updated answer, because both PostgreSQL and SQLDeveloper have been updated several times since it was originally asked.
I've got a PostgreSQL instance running in Azure, with SSLMODE=Require.
While I've been using DBeaverCE to access that instance and generate an ER Diagram, I've gotten really familiar with SQLDeveloper, which is now at v19.4.
The instructions about downloading the latest PostgreSQL JDBC driver and where to place it are correct. What has changed, though, is where to configure your DB access.
You'll find a file $HOME/.sqldeveloper/system19.4.0.354.1759/o.jdeveloper.db.connection.19.3.0.354.1759/connections.json:
{
"connections": [
{
"name": "connection-name-goes-here",
"type": "jdbc",
"info": {
"customUrl": "jdbc:postgresql://your-postgresql-host:5432/DBNAME?sslmode=require",
"hostname": "your-postgresql-host",
"driver": "org.postgresql.Driver",
"subtype": "SDPostgreSQL",
"port": "5432",
"SavePassword": "false",
"RaptorConnectionType": "SDPostgreSQL",
"user": "your_admin_user",
"sslmode": "require"
}
}
]
}
You can use this connection with both Data Modeller and the admin functionality of SQLDeveloper. Specifying all the port, dbname and sslmode in the customUrl are required because SQLDeveloper isn't including the sslmode in what it sends via JDBC, so you have to construct it by hand.
I got the list of databases to populate by putting my username in the Username field (no password) and clicking "Choose Database". Doesn't work with a blank Username field, I can only connect to my user database that way.
(This was with SQL Developer 4.0.0.13, Postgres.app 9.3.0.0, and postgresql-9.3-1100.jdbc41.jar, FWIW.)
Oracle SQL Developer 2020-02 support PostgreSQL, but it is just the basics by adding postgreSQL driver under jdbc dir and configure by adding as a 3rd party driver.
The supported functionality:
multiple databases which can be selected at connection definition
CRUD operations like query tables
scheme operations
basic modelling support: show tables without pk, fk, connections
Not supported functionalities:
no table or field completion
no indexes are shown in a tab
no constraints are shown in a tab like: fk, pk-s, unique, or others
no table or field completions in the editor
no functions, packages,triggers, views are shown
The sad thing is Oracle should only change the queries behind this view in case of PostgreSql connections. For example for indexes they need to use this query: select * from pg_catalog.pg_indexes;
Except that it will not work if your user name and database name are differents. It sounds like an SQLDeveloper bug and i can't find any workaroud
Maybe there are some bugs in Oracle SQL Developer when it connect to the postgresql.However I connect postgresql with navicat successfully.(My postgresql username and database name are different
host= localhost/postgres? worked for me if you need a schema/database use:
localhost/postgres?currentSchema=myschema
ex: localhost/postgres?currentSchema=public
once connected, you can also use the
[Choose Database] button and pull down
sql developer postgres jdbc url for the rest of us