ISQL Statements
FairCom Corporation 3-25
ISQL> display col 5 "Number of orders placed by", customer_name, "=", n_ord on
customer_name
ISQL> compute count of order_id in n_ord on customer_name;
ISQL> select c.customer_name, o.order_id from customers c, orders o
where o.customer_id = c.customer_id;
CUSTOMER_NAME ORDER_ID
------------- --------
Sports Cars Inc. 1
Sports Cars Inc. 2
Number of orders placed by Sports Cars Inc.
= 2
Mighty Bulldozer Inc. 3
Mighty Bulldozer Inc. 4
Number of orders placed by Mighty Bulldozer Inc.
= 2
Ship Shapers Inc. 5
Ship Shapers Inc. 6
Ship Shapers Inc. 7
Number of orders placed by Ship Shapers Inc.
= 3
Tower Construction Inc. 8
Tower Construction Inc. 9
Tower Construction Inc. 10
Number of orders placed by Tower Construction Inc.
= 3
If the select-list of a query includes column titles, they override DISPLAY statements that
include variable or column_name display values for those columns:
ISQL> display col 5 "test display. Sum of fld is", tmp on fld;
ISQL> compute sum of fld in tmp on fld;
ISQL> break on fld
ISQL> select fld from syscalctable; -- This works:
FLD
---
100
test display. Sum of fld is 100
1 record selected
ISQL> select fld "column title" from syscalctable; -- DISPLAY is disabled:
COLUMN TITLE
------------
100
1 record selected
3.7.8 EDIT
Syntax
E[DIT] [stmt_num];
Description
The EDIT statement invokes a text editor to edit the specified statement from the statement his-
tory buffer. If the statement number is not specified, the last statement in the history buffer is
