public bool ExistsDatabase(IAnyDbSetting setting)
{
if (setting == null)
{
throw new ArgumentNullException(nameof(setting));
}
CheckDatabseProvider(setting);
string original = setting.ConnectionString;
try
{
AnyDbConnectionStringBuilder sb = new AnyDbConnectionStringBuilder(setting.ConnectionString);
string dbName = (string)sb["Database"];
sb["Database"] = "postgres";
setting.ConnectionString = sb.ToString();
AnyDbFactory factory = new AnyDbFactory(setting);
using (AnyDbConnection con = factory.OpenConnection())
using (AnyDbCommand cmd = con.CreateCommand())
{
cmd.CommandText = $"SELECT count(datname) from pg_database WHERE datname='{dbName}'";
return(Convert.ToInt32(cmd.ExecuteScalar()) > 0);
}
}
finally
{
setting.ConnectionString = original;
}
}
public void CreateDatabase(IAnyDbSetting setting)
{
if (setting == null)
{
throw new ArgumentNullException(nameof(setting));
}
CheckDatabseProvider(setting);
string original = setting.ConnectionString;
try
{
AnyDbConnectionStringBuilder sb = new AnyDbConnectionStringBuilder(setting.ConnectionString);
string dbName = (string)sb["Database"];
sb["Database"] = "postgres";
setting.ConnectionString = sb.ToString();
AnyDbFactory factory = new AnyDbFactory(setting);
using (AnyDbConnection con = factory.OpenConnection())
using (AnyDbCommand cmd = con.CreateCommand())
{
cmd.CommandText = $"CREATE DATABASE {dbName} ENCODING = 'UTF8';";
cmd.ExecuteNonQuery();
}
}
finally
{
setting.ConnectionString = original;
}
}
public void DropDatabase(IAnyDbSetting setting)
{
if (setting == null)
{
throw new ArgumentNullException(nameof(setting));
}
CheckDatabseProvider(setting);
string original = setting.ConnectionString;
try
{
AnyDbConnectionStringBuilder sb = new AnyDbConnectionStringBuilder(setting.ConnectionString);
string dbName = (string)sb["Database"];
sb["Database"] = "postgres";
setting.ConnectionString = sb.ToString();
AnyDbFactory factory = new AnyDbFactory(setting);
using (AnyDbConnection con = factory.OpenConnection())
using (AnyDbCommand cmd = con.CreateCommand())
{
cmd.CommandText = $"SELECT pg_terminate_backend(pg_stat_activity.pid) FROM pg_stat_activity WHERE pg_stat_activity.datname = '{dbName}' AND pid <> pg_backend_pid(); ";
cmd.ExecuteNonQuery();
cmd.CommandText = $"drop database if exists {dbName}";
cmd.ExecuteNonQuery();
}
}
finally
{
setting.ConnectionString = original;
}
}
public bool ExistsDatabase(IAnyDbSetting setting)
{
if (setting == null)
{
throw new ArgumentNullException(nameof(setting));
}
CheckDatabseProvider(setting);
string original = setting.ConnectionString;
try
{
AnyDbConnectionStringBuilder sb = new AnyDbConnectionStringBuilder(setting.ConnectionString);
string dbName = (string)sb["Database"];
sb["Database"] = "mysql";
setting.ConnectionString = sb.ToString();
AnyDbFactory factory = new AnyDbFactory(setting);
using (AnyDbConnection con = factory.OpenConnection())
using (AnyDbCommand cmd = con.CreateCommand())
{
cmd.CommandText = $"SHOW DATABASES LIKE '{dbName}';";
using (IDataReader reader = cmd.ExecuteReader())
{
return(reader.Read());
}
}
}
finally
{
setting.ConnectionString = original;
}
}
internal AnyDbConnection(AnyDbFactory factory, DbConnection connection, DatabaseProvider databaseProvider, IAnyDbAnnouncer announcer)
{
_connection = connection ?? throw new ArgumentNullException(nameof(connection));
_factory = factory ?? throw new ArgumentNullException(nameof(factory));
_announcer = announcer;
DatabaseProvider = databaseProvider;
}
public bool ExistsDatabase(IAnyDbSetting setting)
{
if (setting == null)
{
throw new ArgumentNullException(nameof(setting));
}
CheckDatabseProvider(setting);
string original = setting.ConnectionString;
try
{
AnyDbConnectionStringBuilder sb = new AnyDbConnectionStringBuilder(setting.ConnectionString);
string dbName = (string)sb["InitialCatalog"];
sb["InitialCatalog"] = "master";
setting.ConnectionString = sb.ToString();
AnyDbFactory factory = new AnyDbFactory(setting);
using (AnyDbConnection con = factory.OpenConnection())
using (AnyDbCommand cmd = con.CreateCommand())
{
cmd.CommandText = $"select isnull(DB_ID(N'{dbName}'), -1)";
return(Convert.ToInt32(cmd.ExecuteScalar()) > -1);
}
}
finally
{
setting.ConnectionString = original;
}
}
public void DropDatabase(IAnyDbSetting setting)
{
if (setting == null)
{
throw new ArgumentNullException(nameof(setting));
}
CheckDatabseProvider(setting);
string original = setting.ConnectionString;
try
{
AnyDbConnectionStringBuilder sb = new AnyDbConnectionStringBuilder(setting.ConnectionString);
string dbName = (string)sb["InitialCatalog"];
sb["InitialCatalog"] = "master";
setting.ConnectionString = sb.ToString();
AnyDbFactory factory = new AnyDbFactory(setting);
using (AnyDbConnection con = factory.OpenConnection())
using (AnyDbCommand cmd = con.CreateCommand())
{
cmd.CommandText = $"IF DB_ID (N'{dbName}') IS NOT NULL DROP DATABASE {dbName}";
cmd.ExecuteNonQuery();
}
}
finally
{
setting.ConnectionString = original;
}
}
public void CreateDatabase(IAnyDbSetting setting)
{
if (setting == null)
{
throw new ArgumentNullException(nameof(setting));
}
CheckDatabseProvider(setting);
string original = setting.ConnectionString;
try
{
AnyDbConnectionStringBuilder sb = new AnyDbConnectionStringBuilder(setting.ConnectionString);
string dbName = (string)sb["InitialCatalog"];
sb["InitialCatalog"] = "master";
setting.ConnectionString = sb.ToString();
AnyDbFactory factory = new AnyDbFactory(setting);
using (AnyDbConnection con = factory.OpenConnection())
using (AnyDbCommand cmd = con.CreateCommand())
{
cmd.CommandText = $"CREATE DATABASE {dbName}";
cmd.ExecuteNonQuery();
cmd.CommandText = $"ALTER DATABASE {dbName} SET RECOVERY SIMPLE";
cmd.ExecuteNonQuery();
cmd.CommandText = $"alter database {dbName} set allow_snapshot_isolation on;";
cmd.ExecuteNonQuery();
cmd.CommandText = $"alter database {dbName} set read_committed_snapshot on;";
cmd.ExecuteNonQuery();
}
}
finally
{
setting.ConnectionString = original;
}
}
public void CreateDatabase(IAnyDbSetting setting)
{
if (setting == null)
{
throw new ArgumentNullException(nameof(setting));
}
CheckDatabseProvider(setting);
AnyDbConnectionStringBuilder sb = CheckConnectionString(setting.ConnectionString);
CheckFolder(Path.GetDirectoryName((string)sb["Data Source"]));
AnyDbFactory factory = new AnyDbFactory(setting);
using (AnyDbConnection con = factory.OpenConnection())
using (AnyDbCommand cmd = con.CreateCommand())
{
cmd.CommandText = "PRAGMA encoding = 'UTF-8'";
cmd.ExecuteNonQuery();
}
}