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SQL-DMO Examples: Full-text Indexing
These examples illustrate Microsoft Search full-text index configuration and catalog population.
Examples
A. Creating a Microsoft Search Full-Text Catalog
The example illustrates enabling a Microsoft® SQL Server™ database for participation in Microsoft Search-supported full-text indexing and query. Enabling a database is a two-step process. The application flags the database indicating intended participation, then creates at least one full-text catalog.
Enable the database for full-text indexing prior to adding the
FullTextCatalog object to the containing collection. Note: Create
and connect of SQLServer object used is not illustrated in this
example.
oSQLServer.Databases("Northwind").EnableFullTextCatalogs
Create a Microsoft Search full-text catalog.
Dim oFullTextCatalog As New SQLDMO.FullTextCatalog
oFullTextCatalog.Name = "ftcatNorthwind"
Add the FullTextCatalog object to the collection, creating the
full-text catalog on the server.
oSQLServer.Databases("Northwind").FullTextCatalogs.Add oFullTextCatalog
B. Indexing a Table for Full-Text Queries
This example illustrates creating a full-text index on a column in a SQL Server table.
Dim oTable As SQLDMO.Table
Get the Table object referencing the Northwind..Employees table.
Note: Create and connect of SQLServer object used is not illustrated
in this example.
Set oTable = oSQLServer.Databases("Northwind").Tables("Employees")
Indicate that Employees will be full-text indexed and use the
Microsoft Search full-text catalog created in an earlier example.
oTable.FullTextCatalogName = "ftcatNorthwind"
oTable.UniqueIndexForFullText = "PK_Employees"
oTable.FullTextIndex = True
Index the Notes column.
oTable.Columns("Notes").FullTextIndex = True
Activate the full-text index on the table.
oTable.FullTextIndexActive = True
C. Populating a Full-Text Catalog
This example illustrates launching a full population on an existing Microsoft Search full-text catalog.
Perform a full population on the Microsoft Search full-text
index catalog created in an earlier example. Note: Create and connect
of SQLServer object used is not illustrated in this example.
Set oFullTextCatalog = _
oSQLServer.Databases("Northwind").FullTextCatalogs("ftcatNorthwind")
oFullTextCatalog.Start (SQLDMOFullText_Full)
Note Microsoft Search full-text catalog population can be a lengthy task. Applications that allow full-text catalog population should display a busy pointer or other appropriate interface device when using SQL-DMO to direct full-text catalog population.
D. Scheduling Population of a Full-Text Catalog
When using SQL-DMO, the you can implement scheduled population of a Microsoft Search full-text catalog by creating a SQL Server Agent job. The step(s) of the job execute a Transact-SQL command batch directing catalog population.
This example illustrates creating a job that schedules an incremental full-text catalog population for weekly execution at 1:00 A.M. of every Sunday.
Dim oJob As New SQLDMO.Job
Dim oJobSchedule As New SQLDMO.JobSchedule
Dim oJobStep As SQLDMO.JobStep
Dim oFullTextCatalog As SQLDMO.FullTextCatalog
Dim iStepID As Long
Dim strDatabase As String
Dim strExecP1, strExecP2 As String
Dim StartYear As String
Dim StartMonth As String
Dim StartDay As String
strDatabase = "Northwind"
Transact-SQL command batch implementing incremental population
for a Microsoft Search full-text catalog.
strExecP1 = "EXEC sp_fulltext_catalog "
strExecP2 = ", start_incremental"
Create the SQL Server Agent job. Job name format and category
designation allow job to appear as a schedule property of the
catalog when the catalog is viewed in SQL Server Enterprise Manager.
Note: Create and connect of SQLServer object used not illustrated in
this example.
oJob.Name = "Start_Incremental on Northwind.ftcatNorthwind.[" & _
oSQLServer.Databases("Northwind").ID & _
"." & _
oSQLServer.Databases("Northwind").FullTextCatalogs(1).FullText
CatalogID & _"]"
oJob.Category = "Full-Text"
oSQLServer.JobServer.Jobs.Add oJob
Alter the job, adding a step populating each full-text catalog
defined.
oJob.BeginAlter
iStepID = 1
For Each oFullTextCatalog In _
oSQLServer.Databases("Northwind").FullTextCatalogs
Set oJobStep = New SQLDMO.JobStep
oJobStep.Name = "Northwind_FullText_Incremental_" & iStepID
oJobStep.DatabaseName = strDatabase
oJobStep.SubSystem = "TSQL"
oJobStep.Command = strExecP1 & oFullTextCatalog.Name & strExecP2
oJobStep.OnFailAction = SQLDMOJobStepAction_QuitWithFailure
oJobStep.OnSuccessAction = SQLDMOJobStepAction_GotoNextStep
oJobStep.StepID = iStepID
oJob.JobSteps.Add oJobStep
iStepID = iStepID + 1
Next oFullTextCatalog
oJob.JobSteps(oJob.JobSteps.Count).OnSuccessAction = _
SQLDMOJobStepAction_QuitWithSuccess
oJob.StartStepID = 1
oJob.DoAlter
Alter the job, adding a schedule for full-text catalog population.
oJobSchedule.Name = "Northwind_FullText_Incremental"
Schedule start date is todays date. Build the string representing
the date for SQL-DMO.
StartYear = DatePart("yyyy", Date)
StartMonth = DatePart("m", Date)
StartDay = DatePart("d", Date)
If Len(StartMonth) < 2 Then StartMonth = "0" & StartMonth
If Len(StartDay) < 2 Then StartDay = "0" & StartDay
oJobSchedule.Schedule.ActiveStartDate = StartYear & StartMonth & _
StartDay
Schedule execution for once, each Sunday at 1:00 AM.
oJobSchedule.Schedule.ActiveStartTimeOfDay = "10000"
oJobSchedule.Schedule.FrequencyInterval = SQLDMOWeek_Sunday
oJobSchedule.Schedule.FrequencyType = SQLDMOFreq_Weekly
oJobSchedule.Schedule.FrequencyRecurrenceFactor = 1
Schedule never expires.
oJobSchedule.Schedule.ActiveEndDate = SQLDMO_NOENDDATE
oJobSchedule.Schedule.ActiveEndTimeOfDay = SQLDMO_NOENDTIME
oJob.BeginAlter
oJob.JobSchedules.Add oJobSchedule
oJob.DoAlter
Target the local server to enable the job.
oJob.ApplyToTargetServer ("(Local)")
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A. Creating a Microsoft Search Full-Text Catalog
The example illustrates enabling a Microsoft® SQL Server™ database for participation in Microsoft Search-supported full-text indexing and query. Enabling a database is a two-step process. The application flags the database indicating intended participation, then creates at least one full-text catalog.
Enable the database for full-text indexing prior to adding the
FullTextCatalog object to the containing collection. Note: Create
and connect of SQLServer object used is not illustrated in this
example.
oSQLServer.Databases("Northwind").EnableFullTextCatalogs
Create a Microsoft Search full-text catalog.
Dim oFullTextCatalog As New SQLDMO.FullTextCatalog
oFullTextCatalog.Name = "ftcatNorthwind"
Add the FullTextCatalog object to the collection, creating the
full-text catalog on the server.
oSQLServer.Databases("Northwind").FullTextCatalogs.Add oFullTextCatalog
B. Indexing a Table for Full-Text Queries
This example illustrates creating a full-text index on a column in a SQL Server table.
Dim oTable As SQLDMO.Table
Get the Table object referencing the Northwind..Employees table.
Note: Create and connect of SQLServer object used is not illustrated
in this example.
Set oTable = oSQLServer.Databases("Northwind").Tables("Employees")
Indicate that Employees will be full-text indexed and use the
Microsoft Search full-text catalog created in an earlier example.
oTable.FullTextCatalogName = "ftcatNorthwind"
oTable.UniqueIndexForFullText = "PK_Employees"
oTable.FullTextIndex = True
Index the Notes column.
oTable.Columns("Notes").FullTextIndex = True
Activate the full-text index on the table.
oTable.FullTextIndexActive = True
C. Populating a Full-Text Catalog
This example illustrates launching a full population on an existing Microsoft Search full-text catalog.
Perform a full population on the Microsoft Search full-text
index catalog created in an earlier example. Note: Create and connect
of SQLServer object used is not illustrated in this example.
Set oFullTextCatalog = _
oSQLServer.Databases("Northwind").FullTextCatalogs("ftcatNorthwind")
oFullTextCatalog.Start (SQLDMOFullText_Full)
Note Microsoft Search full-text catalog population can be a lengthy task. Applications that allow full-text catalog population should display a busy pointer or other appropriate interface device when using SQL-DMO to direct full-text catalog population.
D. Scheduling Population of a Full-Text Catalog
When using SQL-DMO, the you can implement scheduled population of a Microsoft Search full-text catalog by creating a SQL Server Agent job. The step(s) of the job execute a Transact-SQL command batch directing catalog population.
This example illustrates creating a job that schedules an incremental full-text catalog population for weekly execution at 1:00 A.M. of every Sunday.
Dim oJob As New SQLDMO.Job
Dim oJobSchedule As New SQLDMO.JobSchedule
Dim oJobStep As SQLDMO.JobStep
Dim oFullTextCatalog As SQLDMO.FullTextCatalog
Dim iStepID As Long
Dim strDatabase As String
Dim strExecP1, strExecP2 As String
Dim StartYear As String
Dim StartMonth As String
Dim StartDay As String
strDatabase = "Northwind"
Transact-SQL command batch implementing incremental population
for a Microsoft Search full-text catalog.
strExecP1 = "EXEC sp_fulltext_catalog "
strExecP2 = ", start_incremental"
Create the SQL Server Agent job. Job name format and category
designation allow job to appear as a schedule property of the
catalog when the catalog is viewed in SQL Server Enterprise Manager.
Note: Create and connect of SQLServer object used not illustrated in
this example.
oJob.Name = "Start_Incremental on Northwind.ftcatNorthwind.[" & _
oSQLServer.Databases("Northwind").ID & _
"." & _
oSQLServer.Databases("Northwind").FullTextCatalogs(1).FullText
CatalogID & _"]"
oJob.Category = "Full-Text"
oSQLServer.JobServer.Jobs.Add oJob
Alter the job, adding a step populating each full-text catalog
defined.
oJob.BeginAlter
iStepID = 1
For Each oFullTextCatalog In _
oSQLServer.Databases("Northwind").FullTextCatalogs
Set oJobStep = New SQLDMO.JobStep
oJobStep.Name = "Northwind_FullText_Incremental_" & iStepID
oJobStep.DatabaseName = strDatabase
oJobStep.SubSystem = "TSQL"
oJobStep.Command = strExecP1 & oFullTextCatalog.Name & strExecP2
oJobStep.OnFailAction = SQLDMOJobStepAction_QuitWithFailure
oJobStep.OnSuccessAction = SQLDMOJobStepAction_GotoNextStep
oJobStep.StepID = iStepID
oJob.JobSteps.Add oJobStep
iStepID = iStepID + 1
Next oFullTextCatalog
oJob.JobSteps(oJob.JobSteps.Count).OnSuccessAction = _
SQLDMOJobStepAction_QuitWithSuccess
oJob.StartStepID = 1
oJob.DoAlter
Alter the job, adding a schedule for full-text catalog population.
oJobSchedule.Name = "Northwind_FullText_Incremental"
Schedule start date is todays date. Build the string representing
the date for SQL-DMO.
StartYear = DatePart("yyyy", Date)
StartMonth = DatePart("m", Date)
StartDay = DatePart("d", Date)
If Len(StartMonth) < 2 Then StartMonth = "0" & StartMonth
If Len(StartDay) < 2 Then StartDay = "0" & StartDay
oJobSchedule.Schedule.ActiveStartDate = StartYear & StartMonth & _
StartDay
Schedule execution for once, each Sunday at 1:00 AM.
oJobSchedule.Schedule.ActiveStartTimeOfDay = "10000"
oJobSchedule.Schedule.FrequencyInterval = SQLDMOWeek_Sunday
oJobSchedule.Schedule.FrequencyType = SQLDMOFreq_Weekly
oJobSchedule.Schedule.FrequencyRecurrenceFactor = 1
Schedule never expires.
oJobSchedule.Schedule.ActiveEndDate = SQLDMO_NOENDDATE
oJobSchedule.Schedule.ActiveEndTimeOfDay = SQLDMO_NOENDTIME
oJob.BeginAlter
oJob.JobSchedules.Add oJobSchedule
oJob.DoAlter
Target the local server to enable the job.
oJob.ApplyToTargetServer ("(Local)")
