How to Get a List of Databases

Get list of databases from SQL Server

Execute:

SELECT name FROM master.sys.databases

This the preferred approach now, rather than dbo.sysdatabases, which has been deprecated for some time.

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Execute this query:

SELECT name FROM master.dbo.sysdatabases

or if you prefer

EXEC sp_databases

How to get the list of all database users

Whenever you 'see' something in the GUI (SSMS) and you're like "that's what I need", you can always run Sql Profiler to fish for the query that was used.

Run Sql Profiler. Attach it to your database of course.

Then right click in the GUI (in SSMS) and click "Refresh".

And then go see what Profiler "catches".

I got the below when I was in MyDatabase / Security / Users and clicked "refresh" on the "Users".

Again, I didn't come up with the WHERE clause and the LEFT OUTER JOIN, it was a part of the SSMS query. And this query is something that somebody at Microsoft has written (you know, the peeps who know the product inside and out, aka, the experts), so they are familiar with all the weird "flags" in the database.

But the SSMS/GUI -> Sql Profiler tricks works in many scenarios.

SELECT
u.name AS [Name],
'Server[@Name=' + quotename(CAST(
        serverproperty(N'Servername')
       AS sysname),'''') + ']' + '/Database[@Name=' + quotename(db_name(),'''') + ']' + '/User[@Name=' + quotename(u.name,'''') + ']' AS [Urn],
u.create_date AS [CreateDate],
u.principal_id AS [ID],
CAST(CASE dp.state WHEN N'G' THEN 1 WHEN 'W' THEN 1 ELSE 0 END AS bit) AS [HasDBAccess]
FROM
sys.database_principals AS u
LEFT OUTER JOIN sys.database_permissions AS dp ON dp.grantee_principal_id = u.principal_id and dp.type = 'CO'
WHERE
(u.type in ('U', 'S', 'G', 'C', 'K' ,'E', 'X'))
ORDER BY
[Name] ASC

How to get list of all database from sql server in a combobox using c#.net

sys.databases

SELECT name
FROM sys.databases;

Edit:

I recommend using IDataReader, returning a List and caching the results. You can simply bind your drop down to the results and retrieve the same list from cache when needed.

public List<string> GetDatabaseList()
{
    List<string> list = new List<string>();

    // Open connection to the database
    string conString = "server=xeon;uid=sa;pwd=manager; database=northwind";

    using (SqlConnection con = new SqlConnection(conString))
    {
        con.Open();

        // Set up a command with the given query and associate
        // this with the current connection.
        using (SqlCommand cmd = new SqlCommand("SELECT name from sys.databases", con))
        {
            using (IDataReader dr = cmd.ExecuteReader())
            {
                while (dr.Read())
                {
                    list.Add(dr[0].ToString());
                }
            }
        }
    }
    return list;

}

How do I get list of all tables in a database using TSQL?

SQL Server 2000, 2005, 2008, 2012, 2014, 2016, 2017 or 2019:

SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE='BASE TABLE'

To show only tables from a particular database

SELECT TABLE_NAME 
FROM [<DATABASE_NAME>].INFORMATION_SCHEMA.TABLES 
WHERE TABLE_TYPE = 'BASE TABLE'

Or,

SELECT TABLE_NAME 
FROM INFORMATION_SCHEMA.TABLES 
WHERE TABLE_TYPE = 'BASE TABLE' 
    AND TABLE_CATALOG='dbName' --(for MySql, use: TABLE_SCHEMA='dbName' )

PS: For SQL Server 2000:

SELECT * FROM sysobjects WHERE xtype='U' 

PHP - Get list of databases names

$result = mysqli_query($db_conn,"SHOW DATABASES"); 
while ($row = mysqli_fetch_array($result)) { 
    echo $row[0]."<br>"; 
}

How to get a list of databases?

It doesn't appear as though there's a function available to do this, but you can execute a show databases; query and the rows returned will be the databases available.

EXAMPLE:

Replace this:

$db_list = mysql_list_dbs($link); //mysql 

With this:

$db_list = mysqli_query($link, "SHOW DATABASES"); //mysqli

List all the databases on one SQL Server in the order they were created

You can easily write this query against the sys.databases catalog view

SELECT * FROM sys.databases
ORDER BY create_date 

but unfortunately, there's no equivalent for the "last modification date" that I'm aware of ...

This should work from any database on that server - doesn't matter which database you're in, those sys catalog views should be accessible from anywhere.

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