Ingres 9.2 Migration Guide - Actian

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Ease of Use EnhancementsAutomatic Coercion Between Integers and StringsThe DBMS Server performs automatic coercion between integer/float datatypes and char, varchar, nchar, or nvarchar data types. For example, anINSERT can place a quoted string value into an integer column or a databaseprocedure can have an assignment statement that assigns a float value to achar variable—all without using explicit coercion functions such as CHAR() orINT4().Date FunctionsThe following date functions extract the specified portion of a date ortimestamp: year(), quarter(), month(), week(), week_iso(), day(), hour(),minute(), second(), and microsecond(). For example, year('2006-12-15')returns 2006.For more information, see the SQL Reference Guide.Ease of Use EnhancementsThe following enhancements make Ingres easier to use and support:• Name Server registration management• Server management for GCF serversName Server Registration ManagementThe General Communications Facility is enhanced to improve the reliability,performance, and ease of use of your Ingres system. The Name Serverregistration mechanism no longer erroneously de-registers servers nor requiresyou to recycle the installation to recover servers. These problems occasionallyoccurred under heavy DBMS connectivity loads.The enhancement also solves the problem with manually registering servers.Now when the iinamu utility is used to manually register a server, allnecessary information is restored, clients are correctly validated, and attemptsto connect with an installation password are not rejected.As a result of this enhancement, the output of the SHOW SERVERS commandin the iinamu utility is now identical in format to other SHOW class commands.158 Migration Guide
Connectivity EnhancementsServer Management for GCF ServersThe iimonitor utility is an Ingres command line utility used to monitor DBMSservers, Recovery servers, and now GCF servers. The GCF servers supportiimonitor commands. This feature provides additional capability to the Ingressystem administrator to monitor, diagnose, and control the Name Server,Communications Server, and Data Access Server.New iimonitor commands that are specific to GCF servers are as follows:• set trace• register server• remove tickets• remove pooled sessionsFor more information, see the Command Reference Guide.Connectivity EnhancementsThe connectivity enhancements ease migration of applications from non-Ingresdatabase architectures and improve interoperability.Features Introduced in Ingres 2006 Release 2 159
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Ingres ® 9.2 Migration GuideING-92
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