Adding a Data Item [ DBChange Plus User's Guide ] MPE/iX 5.0 Documentation
DBChange Plus User's Guide
Adding a Data Item
To add a data item to the database, use the ADD ITEM command. In this
section, the new data item STORE# is added to the ORDERS database.
Before adding the data item, the REVIEW ITEMS output looks like this:
Itm No. Item Name Attrib Security
------------------------------------------
1 ACCOUNT I4 (11,12,13,14,18/)
2 BINNUM Z2 (/13)
3 CITY X12 (12,13,14/11)
4 CREDIT-RATING R2 (/14)
5 DATE X6 (11,12,13,14,18/)
6 DELIV-DATE X6 (/14)
7 DESCRIPTION X20 (11,12,13,14,18/)
8 FIRST-NAME X10 (14/11)
9 INITIAL U2 (14/11)
10 LAST-NAME X16 (14/11)
11 LASTSHIPDATE X6 (12/)
12 ONHANDQTY J2 (14/12)
13 PRICE J2 (14/)
14 PURCH-DATE X6 (11/14)
15 QUANTITY I1 (/14)
16 STATE X2 (12,13,14/11)
17 STOCK# U8 (11,12,14,18/)
18 STREET-ADD X26 (12,13,14/11)
19 SUPPLIER X16 (12,13/)
20 TAX J2 (14/)
21 TOTAL J2 (11,14/)
22 UNIT-COST P8 (/12)
23 ZIP X6 (12,13,14/11)
In the example below, the data item STORE# is added using the ADD ITEM
command. It should appear before the data item TAX in the data item
list. The sub-count is 8, the type is J, and the length is 2. User
classes 11 and 12 have read access, and user class 14 has write access to
the new data item. The DBCPLUS program displays a message confirming
that the new data item is accepted.
>add item store# (tax) 8 j 2 (11,12/14)
Addition of data item accepted.
>
Refer to "ADD ITEM" in chapter 10, "DBChange Plus Commands," for a
detailed description of the command syntax and parameters.
If you want to verify that the new data item STORE# has been added to the
change file, use the REVIEW ITEMS command. In the following example, the
@ parameter is used to display all the data items in the ORDERS database.
You can see that the data item STORE# has been added.
>review items @
REVIEW ITEMS:
Itm No. Item Name Attrib Security
------------------------------------------
1 ACCOUNT I4 (11,12,13,14,18/)
2 BINNUM Z2 (/13)
3 CITY X12 (12,13,14/11)
4 CREDIT-RATING R2 (/14)
5 DATE X6 (11,12,13,14,18/)
6 DELIV-DATE X6 (/14)
7 DESCRIPTION X20 (11,12,13,14,18/)
8 FIRST-NAME X10 (14/11)
9 INITIAL U2 (14/11)
10 LAST-NAME X16 (14/11)
11 LASTSHIPDATE X6 (12/)
12 ONHANDQTY J2 (14/12)
13 PRICE J2 (14/)
14 PURCH-DATE X6 (11/14)
15 QUANTITY I1 (/14)
16 STATE X2 (12,13,14/11)
17 STOCK# U8 (11,12,14,18/)
18 STREET-ADD X26 (12,13,14/11)
19 SUPPLIER X16 (12,13/)
20 STORE# 8J2 (11,12/14) <---- data item added
21 TAX J2 (14/)
22 TOTAL J2 (11,14/)
23 UNIT-COST P8 (/12)
24 ZIP X6 (12,13,14/11)
MPE/iX 5.0 Documentation