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HP c-tree-SQL ISQL and Tools manual Colposition, Displayvalue, COL columnnumber, @columnname

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ISQL and Tools

Issuing the DISPLAY statement without any arguments displays the currently-set DISPLAY specifications, if any.

Arguments

col_position

An optional argument that specifies the horizontal positioning of the associated display value. There are two forms for the argument:

COL column_number	Directly specifies the column position of the display value as an
	integer(1 specifies column 1, 2 specifies column 2, and so on.).
@column_name	Names a column in the select list of the SQL query. ISQL aligns
	the display value with the specified column.

If the DISPLAY statement omits col_position, ISQL positions the display value at column 1.

display_value

The value to display when the associated break occurs:

"text string"	If the display value is a text string, ISQL simply displays the text string.
variable	If the display value is a variable, ISQL displays the value of the variable
	when the associated break occurs. The variable argument refers to a vari-
	able named in a COMPUTE or DEFINE statement that executes before
	the query. If variable is undefined, ISQL ignores it.
column_name	If the display value is a column name, ISQL displays the value of the col-
	umn when the associated break occurs. The column specified in
	column_name must also be included in the select list of the query. If
	column_name is not also included in the select list, it has no effect. If a
	COLUMN statement specifies a format for the same column, the format-
	ting also affects the DISPLAY statement.

break_spec

Specifies the set of rows after which ISQL processes the DISPLAY statement. A DISPLAY statement has no effect until you issue a corresponding BREAK statement. See the description of the BREAK statement in Section 3.7.2 "BREAK" on page 3-13 for details of break specifi- cations.

Examples

The following set of examples compute the number of orders placed by each customer and dis- plays the message Number of orders placed by, followed by the customer name and the count of orders.

ISQL> break on customer_name

3-24	FairCom Corporation

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HP c-tree-SQL ISQL and Tools manual Colposition, Displayvalue, COL columnnumber, @columnname

Contents

Isql and Tools Reference Guide For use with c-treeSQL ServerPage Table of Contents Data Load Utility dbload Tutorial Source Code Iii FairCom Corporation Purpose of this Manual Syntax Diagram ConventionsDocumentation Overview Audience Related Documentation Isql and Tools Introduction Overview Isql and Tools FairCom Corporation Init Quick TourIntroductory Tutorial Isql Isql Create Table Custmast DefineManage Isql Commit Work Custmast Quick Tour DoneComplete Introductory Tutorial Code Relational Model and Indexing Tutorial ISQLTutorial2.sql Quick Tour Values Insert IntoValues Insert Into Commit Work QTY Price Complete Relational Model and Indexing Tutorial Source Code Locking Tutorial ISQLTutorial3.sql @ISQL @iSQLTutorial3.sql Isql Delete from Custmast Complete Locking Tutorial Source Code Transaction Processing Tutorial ISQLTutorial4.sql Transaction Rollback Work Complete Transaction Processing Tutorial Source Code Syntax Isql StatementsStarting Interactive SQL Arguments Username PasswordStatement History Support Connectstring Isql Statements for Statement History Support Formatting Output of Isql QueriesIsql Statements Statement Summary Isql Statements for Query Formatting Summary Display Example 3-1 Unformatted Query Display from Isql Customername Customercity Orderid Ordervalue Formatting Column Display with the Column Statement Example 3-2 Controlling Display Width of Character Columns Customername Customercity Example 3-3 Customizing Format of Numeric Column DisplaysOrdervalue Example 3-4 Specifying Column Breaks and Values with Display Numorders Customername Example 3-6 Specifying a Query Header and Footer with Title Help and Table Statements Transaction Support Description Isql Reference1 @ Execute Syntax Example Break Syntax Breakspec Customername ExamplesSkip n Clear Syntax History Option ArgumentColumn Syntax Break Column Compute Display Title Heading headingtext ColumnnameFormat formatstring Date-Time Format Strings for the Column Statement Character Description Char Null ? Type Length ColnameNot Null INT Sysdate OrderinfoAmount NEW Title FLDColumn Title Compute AVG MAX MIN SUM Count Variablename Define Syntax Value COL columnnumber ColpositionDisplayvalue @columnname Edit Syntax Exit Exit or Quit SyntaxRelated Statements 10 GET Syntax Isql GET query.sql Isql RUN History Syntax Help CommandsclausesHelp Syntax Orderstate Lotlocation Following example illustrates usage of the History statement From HostcommandHost or SH or Syntax List Syntax Quit Quit or Exit Syntax16 RUN Syntax Isql History Pagesize Save Syntax18 SET Syntax Linesize Pagesize numberlines Isql Break on Isql Select TBL from Systables TBL Connection databasename DefaultTransaction Isolation Level isolationlevel TBL Show Syntax Filename on Is Default ?Spool Syntax Database Connections Isql Spool STK on Start SyntaxArgument … Isql Spool OFF Null ? Type Length Colname Not Null INT Not Null Varchar Date TablenameType Length Colname Null ? Text Title SyntaxLeft Center Right COL n Double Isql Clear Title Isql and Tools FairCom Corporation Data Load Utility dbload Introduction Prerequisites for Dbload Dbload Command Line SyntaxCommandsfile Options Data File Formats Data Load Utility dbload Fixed Length Records Commands FileVariable Length Records Next Record Define Record Statement Char Short Long Float Double For Each Statement Null Example 4-1 Sample dbload commands files Examples Position not specified for fixed length record Compilation ErrorsRecord name redefined Fatal Errors Isql and Tools FairCom Corporation Data Unload Utility dbdump Prerequisites for Dbdump Dbdump Command Line Syntax Data Unload Utility dbdump Short Long Float Double For Record Statement Define Record custrec of Fixed Length 37 AS Isql and Tools FairCom Corporation Schema Export Utility dbschema Username.tablename Username.procedurenameOutfile Username.triggername Import Begin Schema Export Utility dbschemaDbschema END Isql and Tools FairCom Corporation Tutorial Source Code Commit Work Select * from Custmast Delete from Custmast VARCHAR6 IntegerMoney Tutorial Source Code Commit Work Delete from Custmast Imdesc VARCHAR48 Select * from orderlist Select * from orderitems Isql and Tools FairCom Corporation Symbols Index-i Isql Index-ii FairCom Corporation Index Index-iii FairCom Corporation