如何使用in获取PostgreSQL
用户计算机上所有可用数据库的列表?Npgsql
C#
问问题
2716 次
2 回答
2
在 postgreSQL 中有两种方法可以做到这一点:
\l
SELECT datname FROM pg_database;
于 2012-01-22T07:38:26.283 回答
0
使用Npgsql
您可以使用这样的代码片段:
IEnumerable<string> GetDatabaseNames()
{
var connStrBuilder = new NpgsqlConnectionStringBuilder();
connStrBuilder.Host = "localhost";
connStrBuilder.Username = "theduck";
connStrBuilder.Password = "password123";
connStrBuilder.Database = "postgres"; // this database is always present
using (var conn = new NpgsqlConnection(connStrBuilder.ConnectionString))
{
conn.Open();
using (var command = new NpgsqlCommand("SELECT datname FROM pg_database WHERE datistemplate = false ORDER BY datname;", conn))
using (var reader = command.ExecuteReader())
{
while (reader.Read())
{
yield return reader.GetString(0);
}
}
}
}
于 2020-11-10T23:39:40.710 回答