JET_RECSIZE Structure

Applies to: Windows | Windows Server

JET_RECSIZE Structure

The JET_RECSIZE structure is used by JetGetRecordSize to return information about a record's usage requirements in user data space, number of set columns, number of values, and ESE record structure overhead space.

Windows Vista: The JET_RECSIZE structure is introduced in Windows Vista.

    typedef struct {
      unsigned __int64 cbData;
      unsigned __int64 cbLongValueData;
      unsigned __int64 cbOverhead;
      unsigned __int64 cbLongValueOverhead;
      unsigned __int64 cNonTaggedColumns;
      unsigned __int64 cTaggedColumns;
      unsigned __int64 cLongValues;
      unsigned __int64 cMultiValues;
    } JET_RECSIZE;

Members

cbData

User data set in the record.

Note  The key size is not included in this.

cbLongValueData

User data associated with the record but stored in the long-value tree.

Note  This does not count intrinsic long-values.

cbOverhead

The overhead of the ESE record structure for this record. This includes the record's key size.

cbLongValueOverhead

The overhead of the long-value data.

Note  This does not count intrinsic long-values.

cNonTaggedColumns

Total number of fixed and variable columns set in this record.

cTaggedColumns

Total number of tagged columns set in this record.

cLongValues

Total number of long values stored in the long-value tree for this record.

Note  This does not count intrinsic long-values.

cMultiValues

The accumulation of the total number of values beyond the first for all columns in the record.

Remarks

The total number of values in the record would be cMultiValues + cNonTaggedColumns + cTaggedColumns.

Requirements

See Also

JetGetRecordSize