Provides utilities and properties for handling the SYSTEN schema of a database.
The SYSTEM schema holds all the core tables and views for making a database system to be able to work.
Ejemplo n.º 1
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 private void InitSystemSchema()
 {
     using (var transaction = Database.CreateSafeTransaction(IsolationLevel.Serializable)) {
         try {
             SystemSchema.Setup(transaction);
             transaction.Commit();
         } catch (Exception ex) {
             throw new InvalidOperationException("Transaction Exception initializing tables.", ex);
         }
     }
 }
Ejemplo n.º 2
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        public static void CreateAdminUser(this IDatabase database, IQuery context, string adminName, string adminPassword)
        {
            try {
                var user = context.CreateUser(adminName, adminPassword);

                // This is the admin user so add to the 'secure access' table.
                context.AddUserToGroup(adminName, SystemGroups.SecureGroup);

                context.GrantToUserOnSchema(database.Context.DefaultSchema(), user.Name, Privileges.SchemaAll, true);
                context.GrantToUserOnSchema(SystemSchema.Name, user.Name, Privileges.SchemaRead);
                context.GrantToUserOnSchema(InformationSchema.SchemaName, user.Name, Privileges.SchemaRead);

                SystemSchema.GrantToPublic(context);
            } catch (DatabaseSystemException) {
                throw;
            } catch (Exception ex) {
                throw new DatabaseSystemException("Could not create the database administrator.", ex);
            }
        }
Ejemplo n.º 3
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        /// <summary>
        /// Creates the database in the context given, granting the administrative
        /// control to the user identified by the given name and password.
        /// </summary>
        /// <param name="adminName">The name of the administrator.</param>
        /// <param name="adminPassword">The password used to identify the administrator.</param>
        /// <exception cref="DatabaseSystemException">
        /// If the database context is configured to be in read-only model, if it was not possible
        /// to commit the initial information or if another unhanded error occurred while
        /// creating the database.
        /// </exception>
        /// <exception cref="ArgumentNullException">
        /// If either one of <paramref name="adminName"/> or <paramref name="adminPassword"/>
        /// are <c>null</c> or empty.
        /// </exception>
        /// <remarks>
        /// <para>
        /// The properties used to create the database are extracted from
        /// the underlying context (<see cref="DatabaseContext" />).
        /// </para>
        /// <para>
        /// This method does not automatically open the database: to make it accessible
        /// a call to <see cref="Open" /> is required.
        /// </para>
        /// </remarks>
        /// <seealso cref="IDatabaseContext.Configuration" />
        public void Create(string adminName, string adminPassword)
        {
            if (Context.ReadOnly())
            {
                throw new DatabaseSystemException("Cannot create database in read-only mode.");
            }

            if (String.IsNullOrEmpty(adminName))
            {
                throw new ArgumentNullException("adminName");
            }
            if (String.IsNullOrEmpty(adminPassword))
            {
                throw new ArgumentNullException("adminPassword");
            }

            try {
                // Create the conglomerate
                TableComposite.Create();

                using (var session = this.CreateInitialSystemSession()) {
                    using (var context = session.CreateQuery()) {
                        try {
                            session.CurrentSchema(SystemSchema.Name);

                            // Create the schema information tables
                            CreateSchemata(context);

                            // The system tables that are present in every conglomerate.
                            SystemSchema.CreateTables(context);
                            SystemGroups.Create(context);

                            context.CreatePublicUser();

                            // Create the system views
                            InformationSchema.CreateViews(context);
                            InformationSchema.GrantToPublic(context);

                            this.CreateAdminUser(context, adminName, adminPassword);

                            SetCurrentDataVersion(context);

                            // Set all default system procedures.
                            // TODO: SystemSchema.SetupSystemFunctions(session, username);

                            OnDatabaseCreate(context);

                            try {
                                // Close and commit this transaction.
                                session.Commit();
                            } catch (TransactionException e) {
                                throw new DatabaseSystemException("Could not commit the initial information", e);
                            }
                        } catch (DatabaseSystemException) {
                            throw;
                        } catch (Exception ex) {
                            throw new DatabaseSystemException("An error occurred while creating the database.", ex);
                        }
                    }
                }

                // Close the conglomerate.
                TableComposite.Close();
            } catch (DatabaseSystemException) {
                throw;
            } catch (Exception e) {
                throw new DatabaseSystemException("An error occurred while creating the database.", e);
            }
        }