HP c-tree-SQL ISQL and Tools manual Examples, For Record Statement

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ISQL and Tools

•record_length is the length of the fixed length record. This length should include the length of field or record delimiters, if any.

•field_name is the name used to refer to a field in the data file.

•delimiter_char is the field delimiter and is a single character. delimiter_char must be spec- ified as a literal.

•delimiter_string is the record delimiter and can be a single character or a string. It must be specified as a literal.

•start_position is the position where the field starts. It must be an unsigned integer.

•end_position is the position where the field ends. It must be an unsigned integer.

The first position of each record is 1 and not 0.

If date, time, and timestamp types are to be dumped they can be specified as characters in the commands file. If it is a fixed length record then the type specification can be CHAR.

The following is an example of the DEFINE RECORD statement for fixed length records:

DEFINE RECORD rec_one OF FIXED LENGTH 20 AS (

fld1 POSITION (1:4) SHORT, fld2 POSITION (5:15) CHAR, fld3 POSITION (16:20) CHAR

) ;

5.5.2The FOR RECORD Statement

The FOR RECORD statement writes each valid record into the data file after selecting the record from the database. The syntax for the FOR RECORD statement is shown below:

FOR RECORD record_name DUMP INTO data_file_name

USING select_statement ;

The following are the variable descriptions of the FOR RECORD statement:

•record_name specifies the same name used in the associated DEFINE RECORD statement.

•data_file_name is the name of the output data file name.

•select_statement is any valid SELECT statement.

5.6EXAMPLES

This section gives different types of examples for dbdump, both for variable length records as well as fixed length records. The data files can either be ASCII or binary files. If they are binary files they must be in the fixed length record format.

The following is the commands file to write records from the dept table. The output data file name is deptrecs_out which is an ASCII file in the variable length record format.

DEFINE RECORD dept_rec AS

5-4	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