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MIT Data Warehouse LIBRARY ITEM DETAIL Table


Includes detailed information contained in the Item Records in Aleph (e.g., Barcode, Serial Levels, Call Number, Update Date). Data in this table is taken from the Z30 table in Aleph


Field Name

Description

Data Type

Length

CALL_NUMBER

Shelving location without the collection information; MIT puts both the classification and rest of the call number (vol. item, part, date) in $$h. Do not use to limit a query to check whether it is null, since it never is (if blank it is set to N/A) Instead use the IS_BLANK_CALL_NUMBER field from the LIBRARY_CALL_NO_STRUCTURE table, and the CALL_NUMBER_SEARCH field from the LIBRARY_CALL_NUMBER_SEARCH table to limit query by class.

VARCHAR2

100

CALL_NUMBER_CLASS

Use to display the Class No. in a report. Type 0 only (LC) Class No. up to first period (note that some classes should include the period and number following it but don't because the data does not come from 050 $$a - the class was extracted with the letter and number up to the first period only from the Aleph item record). This field should not be used to limit by Class No. Use the CALL_NUMBER_SEARCH field from the LIBRARY_CALL_NUMBER_SEARCH field to limit a query. (Z30-CALL-NO)

VARCHAR2

50

CALL_NUMBER_PREFIX

Used for display in reports when the LIBRARY_CALL_NUMBER_STRUCTURE table is not used in the query. Taken from $$k (E.g. SCORE) Use the LIBRARY CALL_NUMBER _PREFIX field from the LIBRARY_CALL_NUMBER_STRUCTURE table to limit query or if the field will be used to sort data. (Z30-CALL-NO)

VARCHAR2

50

CALL_NUMBER_SEARCH_KEY

Key used to join to the LIBRARY_CALL_NUMBER_SEARCH table. This field should only be used for joining data, NOT for reporting.

VARCHAR2

50

CALL_NUMBER_SORT

Used to sort the call number according to LC class based on the Aleph filing system. Use in the Report Outliner - Category box (top box) to enter for a sort, then hide it from displaying.

VARCHAR2

80

CALL_NUMBER_SOURCE

$$2 (used only when call number type is 7) Hfcl - Half class or Mu - Music (Z30-CALL-NO)

VARCHAR2

50

CALL_NUMBER_SUFFIX

No longer used, was used for Serial or On Reserve (Z30-CALL-NO)

VARCHAR2

50

CHRONOLOGICAL_I

Year (Aleph Z30)

VARCHAR2

20

CHRONOLOGICAL_J

month (Aleph Z30)

VARCHAR2

20

CHRONOLOGICAL_K

day (Aleph Z30)

VARCHAR2

20

CHRONOLOGICAL_L

Suppl, etc. (Aleph Z30)

VARCHAR2

20

ENUMERATION_A

vol. level (Aleph Z30)

VARCHAR2

20

ENUMERATION_B

issue no level (Aleph Z30)

VARCHAR2

20

ENUMERATION_C

subpart of vol level, eg. Supplement (Aleph Z30)

VARCHAR2

20

ENUMERATION_D

4th level (Aleph Z30)

VARCHAR2

20

ENUMERATION_E

5th level (Aleph Z30)

VARCHAR2

20

ENUMERATION_F

6th level (Aleph Z30)

VARCHAR2

20

ENUMERATION_G

Alternative schema - 1st level (Aleph Z30)

VARCHAR2

20

ENUMERATION_H

Alternative schema - 2nd level (Aleph Z30)

VARCHAR2

20

IS_ITEM_LOCATION_TEMPORARY

Used to limit queries by overriding of the location fields by the HOL (holdings) record. Based on the Item status and item process statuses. E.g., could be in bindery, etc.

VARCHAR2

1

ITEM_PROCESS_STATUS_DATE

XXX

DATE

8

LIBRARY_ADM_KEY

Key used to join two tables by the LIBRARY_ADM number, as opposed to the LIBRARY_CATALOG_KEY. Used especially with Course Reserves data, where LIBRARY_RESERVE_CATALOG_KEY does not match up with LIBRARY_CATALOG_KEY, but connect to a shared LIBRARY_ITEM_DETAIL.

VARCHAR2

20

LIBRARY_CALL_NO_STRUCTURE_KEY

Key used to join to the Library_Item_Detail_Table. Consists of: Library Call No. Type Code (Code of classification scheme); Prefix; Is Library Call No. Valid; and Is blank Call No. This field should only be used for joining data, NOT for reporting.

VARCHAR2

20

LIBRARY_CALL_NUMBER_ALEPH

The call number as stored in the Aleph database, including subfield (e.g. $$h) markers.

VARCHAR2

200

LIBRARY_CATALOGER_ID

Staff User name for the last persion to update the item. (Z30-CATALOGER)

VARCHAR2

10

LIBRARY_CATALOG_KEY

Key used to join to the LIBRARY_CATALOG table. This field should only be used for joining data, NOT for reporting.

VARCHAR2

20

LIBRARY_COLLECTION_KEY

Key used to join to the LIBRARY_COLLECTION table. This field should only be used for joining data, NOT for reporting.

VARCHAR2

20

LIBRARY_HOLDINGS_KEY

XXX

VARCHAR2

9

LIBRARY_HOL_DOC_NUMBER_X

Holdings system number generated in Aleph MIT_60. (Z30-HOL-DOC-Number)

VARCHAR2

9

LIBRARY_ISSUE_ARRIVAL_DATE

XXX

DATE

8

LIBRARY_ISSUE_EXPEC_ARRVL_DATE

XXX

DATE

8

LIBRARY_ITEM_BARCODE

Unique identifier of item. When an item is ordered, an item record is created and given an ""N"" barcode (a prefix N and a sequential number); after it arrives and is physically barcoded, ""N"" is replaced with a physical bar code (with a prefix of 39080) this has a Process Status of: Received/not yet available (reserve, etc.); after available, prefix is dropped and status changes. This is an instance where the Barcode (Fact Table) may be used to limit since it is a unique entry. (Z30-BARCODE)

VARCHAR2

15

LIBRARY_ITEM_DESCRIPTION

For Serials or multivolumes - vol., pt, issues, dates (Z30-DESCRIPTION)

VARCHAR2

200

LIBRARY_ITEM_ISSUE_DATE

For serials - Z30 Issue Date - Publication date of issue.

DATE

8

LIBRARY_ITEM_KEY

XXX

VARCHAR2

15

LIBRARY_ITEM_LAST_RETURN_DATE

Date of last return transaction (circulation). (Z30-DATE-LAST-RETURNED). Used for statistical purposes.

DATE

8

LIBRARY_ITEM_LOANS_NUMBER

Cumulative number of loans for item - from July, 1995 to present only. (Z30-NO-LOANS). Use for statistical purposes.

NUMBER

22

LIBRARY_ITEM_OPEN_DATE

Date the item record was created. (Z30-OPEN-DATE)

DATE

8

LIBRARY_ITEM_STATUS_KEY

Key used to join to the LIBRARY_ITEM_STATUS table. This field should only be used for joining data, NOT for reporting.

VARCHAR2

20

LIBRARY_ITEM_UPDATE_DATE

Date the item was last updated. (Z30-UPDATE-DATE)

DATE

8

LIBRARY_KEY

Key used to join to the LIBRARY table. This field should only be used for joining data, NOT for reporting.

VARCHAR2

3

LIBRARY_ORDER_KEY

Key used to join to the LIBRARY_ORDER table. This field should only be used for joining data, NOT for reporting.

VARCHAR2

14

LIBRARY_ORDER_STATUS_KEY

Key used to join to the LIBRARY_ORDER_STATUS table. This field should only be used for joining data, NOT for reporting.

VARCHAR2

20

LIBRARY_ORDER_TYPE_KEY

Key used to join to the LIBRARY _ORDER_TYPE table. This field should only be used for joining data, NOT for reporting.

VARCHAR2

20

LIBRARY_VENDOR_KEY

Key used to join to the LIBRARY_VENDOR table. This field should only be used for joining data, NOT for reporting.

VARCHAR2

20

ORDER_NUMBER

Order number from Acquisitions order record (Z30-ORDER-NUMBER)

VARCHAR2

30

PUBLIC_NOTE

Item note for display in the public OPAC (Z30-NOTE-OPAC)

VARCHAR2

50

RECORD_COUNTER

Used to count records within a group on a report. Always contains a value of 1.

NUMBER

1

WAREHOUSE_LOAD_DATE

The date the record was loaded into the Data Warehouse from the source system.

DATE

8