HP c-tree-SQL ISQL and Tools manual Example 3-1 Unformatted Query Display from Isql

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ISQL Statements

All the examples use the same ISQL query. The query retrieves data on outstanding customer orders. The query joins two tables, customers and orders. The examples for the TABLE state- ment on Section 3.7.13 "HOST or SH or !" on page 3-31 show the columns and data types for these sample tables.

The following example shows the query and an excerpt of the results as ISQL displays them without the benefit of any query-formatting statements:

Example 3-1: Unformatted Query Display from ISQL

ISQL> select c.customer_name, c.customer_city, o.order_id, o.order_value from customers c, orders o

where o.customer_id = c.customer_id order by c.customer_name;

CUSTOMER_NAME	CUSTOMER_CITY
-------------	-------------
ORDER_ID ORDER_VALUE
--------	-----------
Aerospace Enterprises Inc.	Scottsdale
13	3000000
Aerospace Enterprises Inc.	Scottsdale
14	1500000
Chemical Construction Inc.	Joplin
11	3000000
Chemical Construction Inc.	Joplin
12	7500000
Luxury Cars Inc.	North Ridgeville
21	6000000
Luxury Cars Inc.	North Ridgeville
20	5000000

Although this query retrieves the correct data, the formatting is inadequate:

•The display for each record wraps across two lines, primarily because of the column defini- tions for the text columns customer_name and customer_city. ISQL displays the full col- umn width (50 characters for each column) even though the contents don't use the entire width.

•It's not clear that the values in the order_value column represent money amounts.

The next section shows how to use the COLUMN statement to address these formatting issues.

In addition, you can use DISPLAY, COMPUTE, and BREAK statements to present order sum- maries for each customer. Section 3.4.2 "Summarizing Data with DISPLAY, COMPUTE, and BREAK Statements" on page 3-7 shows how to do this. Finally, you can add text that ISQL displays at the beginning and end of query results with the TITLE statement, as described in Section 3.4.3 "Adding Beginning and Concluding Titles with the TITLE Statement" on page 3- 9.

All of these statements are independent of the actual query. You do not need to change the query in any way to control how ISQL formats the results.

FairCom Corporation

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Contents For use with c-treeSQL Server Isql and Tools Reference GuidePage Table of Contents Data Load Utility dbload Iii Tutorial Source CodeFairCom Corporation Audience Syntax Diagram ConventionsDocumentation Overview Purpose of this ManualIsql and Tools Related DocumentationOverview IntroductionIsql and Tools FairCom Corporation Isql Quick TourIntroductory Tutorial InitIsql Commit Work Custmast DefineManage Isql Create Table CustmastComplete Introductory Tutorial Code DoneQuick Tour ISQLTutorial2.sql Relational Model and Indexing TutorialQuick Tour Values Insert Into Insert IntoValues QTY Price Commit WorkComplete Relational Model and Indexing Tutorial Source Code ISQLTutorial3.sql Locking Tutorial@ISQL @iSQLTutorial3.sql Isql Delete from Custmast Complete Locking Tutorial Source Code ISQLTutorial4.sql Transaction Processing TutorialTransaction Rollback Work Complete Transaction Processing Tutorial Source Code Arguments Isql StatementsStarting Interactive SQL SyntaxConnectstring PasswordStatement History Support UsernameStatement Summary Formatting Output of Isql QueriesIsql Statements Isql Statements for Statement History SupportDisplay Isql Statements for Query Formatting SummaryCustomername Customercity Orderid Ordervalue Example 3-1 Unformatted Query Display from IsqlExample 3-2 Controlling Display Width of Character Columns Formatting Column Display with the Column StatementOrdervalue Example 3-3 Customizing Format of Numeric Column DisplaysCustomername Customercity Example 3-4 Specifying Column Breaks and Values with Display Numorders Customername Example 3-6 Specifying a Query Header and Footer with Title Transaction Support Help and Table StatementsExample Isql Reference1 @ Execute Syntax DescriptionBreakspec Break SyntaxSkip n ExamplesCustomername History Clear SyntaxBreak Column Compute Display Title ArgumentColumn Syntax OptionFormat formatstring ColumnnameHeading headingtext Character Description Date-Time Format Strings for the Column StatementNot Null INT Null ? Type Length ColnameChar Amount OrderinfoSysdate Compute FLDColumn Title NEW TitleVariablename AVG MAX MIN SUM CountValue Define Syntax@columnname ColpositionDisplayvalue COL columnnumberEdit Syntax Related Statements Exit or Quit SyntaxExit Isql GET query.sql 10 GET SyntaxIsql RUN Orderstate Lotlocation Help CommandsclausesHelp Syntax History SyntaxFollowing example illustrates usage of the History statement Host or SH or Syntax HostcommandFrom List Syntax Isql History Quit or Exit Syntax16 RUN Syntax QuitLinesize Save Syntax18 SET Syntax PagesizePagesize numberlines TBL Connection databasename DefaultTransaction Isolation Level isolationlevel Isql Break on Isql Select TBL from Systables TBLShow Syntax Database Connections Is Default ?Spool Syntax Filename onIsql Spool OFF Start SyntaxArgument … Isql Spool STK onNot Null Varchar Null ? Type Length Colname Not Null INTType Length Colname Null ? TablenameDate Double Title SyntaxLeft Center Right COL n TextIsql Clear Title Isql and Tools FairCom Corporation Introduction Data Load Utility dbloadOptions Dbload Command Line SyntaxCommandsfile Prerequisites for DbloadData Load Utility dbload Data File FormatsNext Record Commands FileVariable Length Records Fixed Length RecordsChar Short Long Float Double Define Record StatementNull For Each StatementExamples Example 4-1 Sample dbload commands filesRecord name redefined Compilation ErrorsPosition not specified for fixed length record Fatal Errors Isql and Tools FairCom Corporation Prerequisites for Dbdump Data Unload Utility dbdumpDbdump Command Line Syntax Short Long Float Double Data Unload Utility dbdumpFor Record Statement Define Record custrec of Fixed Length 37 AS Isql and Tools FairCom Corporation Schema Export Utility dbschema Username.triggername Username.procedurenameOutfile Username.tablenameEND Schema Export Utility dbschemaDbschema Import BeginIsql and Tools FairCom Corporation Commit Work Select * from Custmast Delete from Custmast Tutorial Source CodeMoney IntegerVARCHAR6 Commit Work Delete from Custmast Tutorial Source CodeImdesc VARCHAR48 Select * from orderlist Select * from orderitems Isql and Tools FairCom Corporation Index-i SymbolsIndex-ii FairCom Corporation IsqlIndex-iii FairCom Corporation Index