monTableColumns

Description

Describes all the columns for each monitoring table. monTableColumns helps determine what columns are in the monitoring tables. You can join monTableColumns with monTables to report columns and column attributes for the monitoring tables.

The metadata view for this table is identical for all instances in a shared-disk cluster.

NoteYou need not enable any configuration parameters for this monitoring table to collect data.

Columns

The columns for monTableColumns are:

Name

Datatype

Attributes

Description

1The Indicators column is a bitmap. Use a bit mask to to determine which bits are turned on. Possible values are:

  • 1 – the value for Indicators may increase rapidly and lead to counter wrapping if values reach 232, which can occur to columns that have the number 1 bit in the Indicators column value turned on. To determine whether the 1 bit is turned on, use:

    select TableName, ColumnName
    from Master..monTableColumns
    where Indicators & 1 != 0
    
  • 2 – the counter is shared with sp_sysmon and is reset if you execute sp_sysmon. . .clear.

    To display all columns sp_sysmon clears with the clear parameter, use:

    Select TableName, ColumnName 
    from master..monTableColumns 
    where Indicators & 2 != 0
    

TableID

int

Unique identifier for the view

ColumnID

int

Position of the column

TypeID

int

Identifier for the datatype of the column

Precision

tinyint

Precision of the column, if numeric

Scale

tinyint

Scale of the column, if numeric

Length

smallint

Maximum length of the column (in bytes)

Indicators

int

Indicators for specific column properties (for example, if the column is prone to wrapping and should be sampled)1

TableName

varchar(30)

Null

Name of the table

ColumnName

varchar(30)

Null

Name of the column

TypeName

varchar(20)

Null

Name of the datatype of the column

Description

varchar(255)

Null

Description of the column