HP c-tree-SQL ISQL and Tools manual Transaction

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ISQL and Tools

Transaction

These tables consist of a Customer Master table and an Item Master table that support prima- rily static information regarding a company's product line and customer demographics. The orderlist and orderitems tables consist of dynamic information pertinent to day to day sales.

This dynamic data makes its way into the database as a transaction. If any part of the data is invalid then the transaction is rolled back and none of the data will enter the database. In this tutorial a transaction is comprised of the order and the items that make up an order.

The following SQL syntax provides the functionality for the define phase:

•CREATE TABLE - Create a table.

•COMMIT WORK - Make changes permanent. Below is the interactive SQL for DEFINE:

ISQL> CREATE TABLE orderlist ( ol_orderdate DATE, ol_promdate DATE,

ol_ordnum VARCHAR(7), ol_custnum VARCHAR(4));

ISQL> CREATE TABLE orderitems ( oi_ordernum VARCHAR(7), oi_seqnumber SMALLINT, oi_quantity SMALLINT, oi_itemnum VARCHAR(6));

ISQL> CREATE TABLE itemmast ( im_weight INTEGER,

im_price MONEY,

im_itemnum VARCHAR(6),

im_desc VARCHAR(48));

ISQL> CREATE TABLE custmast (

cm_custnum VARCHAR(5),

cm_zip VARCHAR(10),

cm_state VARCHAR(3), cm_rating VARCHAR(2),

cm_name VARCHAR(48), cm_address VARCHAR(48),

cm_city VARCHAR(48));

ISQL> COMMIT WORK;

2-14	FairCom Corporation

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Contents Isql and Tools Reference Guide For use with c-treeSQL ServerPage Table of Contents Data Load Utility dbload Tutorial Source Code IiiFairCom Corporation Syntax Diagram Conventions Documentation OverviewPurpose of this Manual AudienceRelated Documentation Isql and ToolsIntroduction OverviewIsql and Tools FairCom Corporation Quick Tour Introductory TutorialInit IsqlDefine ManageIsql Create Table Custmast Isql Commit Work CustmastDone Complete Introductory Tutorial CodeQuick Tour Relational Model and Indexing Tutorial ISQLTutorial2.sqlQuick Tour Insert Into Values Insert IntoValues Commit Work QTY PriceComplete 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.sqlTransaction Rollback Work Complete Transaction Processing Tutorial Source Code Isql Statements Starting Interactive SQLSyntax ArgumentsPassword Statement History SupportUsername ConnectstringFormatting Output of Isql Queries Isql StatementsIsql Statements for Statement History Support Statement SummaryIsql Statements for Query Formatting Summary DisplayExample 3-1 Unformatted Query Display from Isql Customername Customercity Orderid OrdervalueFormatting Column Display with the Column Statement Example 3-2 Controlling Display Width of Character ColumnsExample 3-3 Customizing Format of Numeric Column Displays OrdervalueCustomername Customercity 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 SupportIsql Reference 1 @ Execute SyntaxDescription ExampleBreak Syntax BreakspecExamples Skip nCustomername Clear Syntax HistoryArgument Column SyntaxOption Break Column Compute Display TitleColumnname Format formatstringHeading headingtext Date-Time Format Strings for the Column Statement Character DescriptionNull ? Type Length Colname Not Null INTChar Orderinfo AmountSysdate FLD Column TitleNEW Title ComputeAVG MAX MIN SUM Count VariablenameDefine Syntax ValueColposition DisplayvalueCOL columnnumber @columnnameEdit Syntax Exit or Quit Syntax Related StatementsExit 10 GET Syntax Isql GET query.sqlIsql RUN Help Commandsclauses Help SyntaxHistory Syntax Orderstate LotlocationFollowing example illustrates usage of the History statement Hostcommand Host or SH or SyntaxFrom List Syntax Quit or Exit Syntax 16 RUN SyntaxQuit Isql HistorySave Syntax 18 SET SyntaxPagesize LinesizePagesize numberlines Connection databasename Default Transaction Isolation Level isolationlevelIsql Break on Isql Select TBL from Systables TBL TBLShow Syntax Is Default ? Spool SyntaxFilename on Database ConnectionsStart Syntax Argument …Isql Spool STK on Isql Spool OFFNull ? Type Length Colname Not Null INT Not Null VarcharTablename Type Length Colname Null ?Date Title Syntax Left Center Right COL nText DoubleIsql Clear Title Isql and Tools FairCom Corporation Data Load Utility dbload IntroductionDbload Command Line Syntax CommandsfilePrerequisites for Dbload OptionsData File Formats Data Load Utility dbloadCommands File Variable Length RecordsFixed Length Records Next RecordDefine Record Statement Char Short Long Float DoubleFor Each Statement NullExample 4-1 Sample dbload commands files ExamplesCompilation Errors Record name redefinedPosition not specified for fixed length record Fatal Errors Isql and Tools FairCom Corporation Data Unload Utility dbdump Prerequisites for DbdumpDbdump Command Line Syntax Data Unload Utility dbdump Short Long Float DoubleFor Record Statement Define Record custrec of Fixed Length 37 AS Isql and Tools FairCom Corporation Schema Export Utility dbschema Username.procedurename OutfileUsername.tablename Username.triggernameSchema Export Utility dbschema DbschemaImport Begin ENDIsql and Tools FairCom Corporation Tutorial Source Code Commit Work Select * from Custmast Delete from CustmastInteger MoneyVARCHAR6 Tutorial Source Code Commit Work Delete from CustmastImdesc VARCHAR48 Select * from orderlist Select * from orderitems Isql and Tools FairCom Corporation Symbols Index-iIsql Index-ii FairCom CorporationIndex Index-iii FairCom Corporation