| name | sysname | Name of the column or procedure parameter. |
| id | int | Object ID of the table to which this column belongs, or the ID of the stored procedure with which this parameter is associated. |
| xtype | tinyint | Physical storage type from systypes. |
| typestat | tinyint | For internal use only. |
| xusertype | smallint | ID of extended user-defined data type. |
| length | smallint | Maximum physical storage length from systypes. |
| xprec | tinyint | For internal use only. |
| xscale | tinyint | For internal use only. |
| colid | smallint | Column or parameter ID. |
| xoffset | smallint | For internal use only. |
| bitpos | tinyint | For internal use only. |
| reserved | tinyint | For internal use only. |
| colstat | smallint | For internal use only. |
| cdefault | int | ID of the default for this column. |
| domain | int | ID of the rule or CHECK constraint for this column. |
| number | smallint | Subprocedure number when the procedure is grouped (0 for nonprocedure entries). |
| colorder | smallint | For internal use only. |
| autoval | varbinary(255) | For internal use only. |
| offset | smallint | Offset into the row in which this column appears; if negative, variable-length row. |
| status | tinyint | Bitmap used to describe a property of the column or the parameter: 0x08 = Column allows null values; 0x10 = ANSI padding was in effect when varchar or varbinary columns were added. Trailing blanks are preserved for varchar and trailing zeros are preserved for varbinary columns; 0x40 = Parameter is an OUTPUT parameter; 0x80 = Column is an identity column |
| type | tinyint | Physical storage type from systypes. |
| usertype | smallint | ID of user-defined data type from systypes. |
| printfmt | varchar(255) | For internal use only. |
| prec | smallint | Level of precision for this column. |
| scale | int | Scale for this column. |
| iscomputed | int | Flag indicating whether the column is computed: 0 = noncomputed; 1 = computed. |
| isoutparam | int | Indicates whether the procedure parameter is an output parameter: 0 = false; 1 = true. |
| isnullable | int | Indicates whether the column allows null values: 0 = false; 1 = true. |