By Joshy George

Introduction

It is a sample C# (VS2005) application for Automatic Sql server Backup Utility using sqlserveragent. I have used SQL-DMO dll. This article will show you how to create a automatic backup in Sql server 2000.

This code should work on any PC use VB.NET and installed SQL Server 2000 (any edition or Client Components for SQL Server 2000.

SQLDMO (Which installed always bt MS SQL Server 2000 or MS SQL Server Client Tools

To do:

1) First Enter Your Sql Server username and password on   corresponding Text Box
2) Set backup Start date & Backup Time
3) After Finishing this then please check manually it will working or not
4) Manual working procedure: 
    1) Run Sql sever enterprise Manager
    2) Select management Option
    3) Open Sql server agent
    4) Open Jobs window
    5) Check whether job item exist or not
    6) Right click on newly created job item then, we will get one 
    7) Popup menu, then select start job
    8) After finish the job then check folder "D:\backup" bkp file created or not

Important Functions

Add reference to SQL-DMO dll

You can do this by right clicking the project in Solution Explorer, then selecting 'Add Reference', COM components and the latest version of "Microsoft SQLDMO Object Library".

Available Server

public void dIsplayServerList(ComboBox cboListName)
        {
            try
            {
                SQLDMO.Application oSQLServerDMOApp = new SQLDMO.Application();
                Info.informationLayer info = new Info.informationLayer();
                
                SQLDMO.NameList oNameList;
                oNameList = oSQLServerDMOApp.ListAvailableSQLServers();
                for (int intIndex = 0; intIndex <= oNameList.Count - 1; intIndex++)
                {
                    if (oNameList.Item(intIndex as object) != null)
                    {
                        cboListName.Items.Add(oNameList.Item(intIndex).ToString());
                    }
                }
                if (cboListName.Items.Count > 0) cboListName.SelectedIndex = 0;
                else cboListName.Text = "(Local)";
            }
            catch 
            {
                
            }

Available databases

public void dIsplayDatabases(ComboBox cboDatabase,Info.informationLayer info)
        {
            try
            {
                SQLDMO._SQLServer SQLServer = new SQLDMO.SQLServerClass();

                cboDatabase.Items.Clear();
                SQLServer.Connect(info.strServerName,info.strLoginName,info.strPwd);
                foreach (SQLDMO.Database db in SQLServer.Databases)
                {
                    if (db.Name != null)
                        cboDatabase.Items.Add(db.Name);
                }
                cboDatabase.Sorted = true;
                if (cboDatabase.Items.Count == 0)cboDatabase.Text = "";
            }
            catch (Exception err)
            {
                info.ErrorMessageDataLayer = err.Message;

            }
        }


Create Job on Server Agent :

public void CreateJob_Sql(Info.informationLayer info)
        {
            {
                try
                {
                    SQLDMO._SQLServer SQLServer = new SQLDMO.SQLServerClass();
                    SQLDMO.Job SQLJob = new SQLDMO.Job();
                    SQLDMO.JobSchedule SQLSchedule = new SQLDMO.JobSchedule();

                    SQLServer.Connect(info.strServerName, info.strLoginName, info.strPwd);

                    switch (SQLServer.JobServer.Status)
                    {
                        case SQLDMO_SVCSTATUS_TYPE.SQLDMOSvc_Stopped:
                            SQLServer.JobServer.Start();
                            SQLServer.JobServer.AutoStart = true;
                            break;
                    }

                    SQLJob.Name = info.strDatabaseName;
                    SQLJob.Description = "Check and Backup" + info.strDatabaseName;

                    SQLServer.JobServer.Jobs.Add(SQLJob);
                    SQLJob.Category = "Database Maintenance";

                    SQLDMO.JobStep aJobStep = new SQLDMO.JobStep();

                    aJobStep.Name = "Step 2: Backup the Database";
                    aJobStep.StepID = 1;

                    aJobStep.DatabaseName = info.strDatabaseName;

                    aJobStep.SubSystem = "TSQL";
                    //------>>> If BackUp Folder is Not Found then create BackUp Folder.
                                    
                     string   DirectoryName = "D:\BackUp";
                     if (Directory.Exists(DirectoryName)==false)
                     {
                         System.IO.Directory.CreateDirectory(DirectoryName);
                     }
                    //------>>>
                    string sExt;
                    sExt="EXEC master.dbo.xp_sqlmaint '-S " + info.strServerName + " -U " + info.strLoginName + " -P " + 
info.strPwd + "  -D " + info.strDatabaseName + " -CkDB -CkAl -CkCat -BkUpMedia DISK -BkUpDB D:\Backup  -BkExt BAK -DelBkUps 
2weeks -BkUpOnlyIfClean -Rpt D:\Backup\BackDB_Checks.txt'";
                    aJobStep.Command = sExt;
                    aJobStep.OnSuccessAction = SQLDMO_JOBSTEPACTION_TYPE.SQLDMOJobStepAction_QuitWithSuccess;
                    aJobStep.OnFailAction = SQLDMO_JOBSTEPACTION_TYPE.SQLDMOJobStepAction_QuitWithFailure;
                    SQLJob.JobSteps.Add(aJobStep);
                    SQLJob.ApplyToTargetServer(info.strServerName);
                    aJobStep.DoAlter();
                    SQLJob.Refresh();
                    aJobStep.Refresh();

                }
                catch (Exception Err)
                {
                    info.ErrorMessageDataLayer = Err.Message;
                }
            }
        }

Create Job shedule on server Agent:

public void CreateShedule_Sql(Info.informationLayer info)
        {
            try
            {
                //it will take bkp every week 2 day
                SQLDMO.Job SQLJob = new SQLDMO.Job();

                SQLDMO._SQLServer SQLServer = new SQLDMO.SQLServerClass();
                SQLDMO.JobSchedule SQLSchedule = new SQLDMO.JobSchedule();

                SQLServer.Connect(info.strServerName, info.strLoginName, info.strPwd);
                SQLJob = SQLServer.JobServer.Jobs.Item(info.strDatabaseName);

                // create a new JobSchedule object
                SQLSchedule.Name = "Weekly Backup";
                SQLSchedule.Schedule.FrequencyType = SQLDMO.SQLDMO_FREQUENCY_TYPE.SQLDMOFreq_Weekly;
                SQLSchedule.Schedule.FrequencyInterval = 2;
                SQLSchedule.Schedule.FrequencyRecurrenceFactor = 2; 

                // // start on Feb18, 2000 - at 12.55
                SQLSchedule.Schedule.ActiveStartDate = info.intStartDate;
                SQLSchedule.Schedule.ActiveStartTimeOfDay = info.intStartTime;
                ////  this schedule has no end time or end date

                SQLSchedule.Schedule.ActiveEndDate = 99991231;
                SQLSchedule.Schedule.ActiveEndTimeOfDay = 235959;

                ////  add the schedule to the Job
                SQLJob.BeginAlter();
                SQLJob.JobSchedules.Add(SQLSchedule);
                SQLJob.DoAlter();
                //SQLJob.JobSchedules.Refresh();
                info.ErrorMessageDataLayer = "New Sql Job [Databasename= " + info.strDatabaseName + " ]Sucessfully Created.  ";
            }
            catch (Exception err)
            {
                info.ErrorMessageDataLayer = err.Message;

            }
        }


Syntax (SQL Server 2000)
xp_sqlmaint 'switch_string'
[
    [-S server_name[\instance_name]]
    [-U login_ID [-P password]]
    {
        [ -D database_name | -PlanName name | -PlanID guid ]
        [-Rpt text_file]
        [-To operator_name]
        [-HtmlRpt html_file [-DelHtmlRpt ] ]
        [-RmUnusedSpace threshold_percent free_percent]
        [-CkDB | -CkDBNoIdx]
        [-CkAl | -CkAlNoIdx]
        [-CkCat]
        [-UpdOptiStats sample_percent]
        [-RebldIdx free_space]
        [-WriteHistory]
        [
            {-BkUpDB [backup_path] | -BkUpLog [backup_path] }
            {-BkUpMedia
                {DISK [    [-DelBkUps ] 
                            [-CrBkSubDir ] [ -UseDefDir ]
                         ]
                | TAPE
                }
            }
            [-BkUpOnlyIfClean]
            [-VrfyBackup]
        ]
    }
]

time_period
number[minutes | hours | days | weeks | months]

Syntax (SQL Server 7.0)
sqlmaint 
[-?] |
[
    [-S server]
    [-U login_ID [-P password]]
    {
        [ -D database_name | -PlanName name | -PlanID guid ]
        [-Rpt text_file [-DelTxtRpt ] ]
        [-To operator_name]
        [-HtmlRpt html_file [-DelHtmlRpt ] ]
        [-RmUnusedSpace threshold_percent free_percent]
        [-CkDB | -CkDBNoIdx]
        [-CkAl | -CkAlNoIdx]
        [-CkTxtAl]
        [-CkCat]
        [-UpdSts]
        [-UpdOptiStats sample_percent]
        [-RebldIdx free_space]
        [-WriteHistory]
        [
            {-BkUpDB [backup_path] | -BkUpLog [backup_path] }
            {-BkUpMedia
                {DISK [    [-DelBkUps ] 
                            [-CrBkSubDir ] [ -UseDefDir ]
                         ]
                | TAPE
                }
            }
            [-BkUpOnlyIfClean]
            [-VrfyBackup]
        ]
    }
]

Download dbMaintain.zip