Ingres 9.2 Migration Guide - Actian

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New SQL FunctionalityParallel Index CreationA new variation of the CREATE INDEX statement allows the user to createmultiple secondary indexes with a single pass through the base table. After therequired base table columns are extracted, the indexes are created in parallel,each one using an independent worker thread. For additional performance, anynecessary sorting is performed using the new parallel sort capability.The new syntax is:CREATE INDEX (index-spec), (index-spec), ...where an index-spec looks similar to the original CREATE INDEX statement:(index-name ON base-table (column-list) WITH with-clause)SELECT EnhancementThe SELECT statement now allows the FIRST n clause in the result list. Thisclause limits the result returned to the user to the first N rows.Bit-wise Operator SupportThe following functions have been added to Ingres II 2.5 to provide support forbit-wise operations:bit_addLogical "add" of two byte operandsbit_andLogical "and" of two byte operandsbit_notbit_orLogical "not" of two byte operandsLogical "or" of two byte operandsbit_xorLogical "exclusive or" of two byte operandsFor all of these bit functions, all operations proceed right to left. The shorter oftwo operands is padded with hex zeroes on the left. The result is a byte fieldequal in size to the longer operand.216 Migration Guide
Extended Date SupportAggregate FunctionsNew aggregate functions have been added:• stddev_samp• stddev_pop• var_samp• var_popThe _pop forms divide by group size, the _samp forms divide by group sizeminus one.Miscellaneous FunctionsThe following miscellaneous functions have been added to Ingres II 2.5:intextractExtracts the number at the given location.ii_ipaddrConverts an IP address to a byte 4.random, randomfGenerates random integer or float8 valuespower, lnAre ANSI compliant synonyms for ** and log functions.Several synonyms have been added to existing Ingres data types (such ascharacter long object and clob for long varchar and binary long object and blobfor long byte).Extended Date SupportIngres II 2.5 allows users to insert dates in the range 01-Jan-0001 to 31-Dec9999.Features Introduced in Ingres II 2.5 217
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Ingres ® 9.2 Migration GuideING-92
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Run VMSINSTAL .....................
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BEFORE Triggers....................
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Increased Maximum Size of Character
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Chapter 1: Planning the Upgrade Thi
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Upgrade TypesUpgradedb MethodThe up
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Required Installations for Upgradin
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How You Move an Existing Developmen
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How You Prepare Your ApplicationsRe
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How You Load Databases and Applicat
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How You Prepare for Development Ins
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How You Prepare for Development Ins
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Testing Applications and Procedures
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How You Practice the UpgradeHow You
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How You Upgrade Using the Upgradedb
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How You Perform an Upgrade Using Un
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Chapter 5: Troubleshooting Upgraded
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Other Upgradedb ProblemsOther Upgra
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Considerations When Installing Ingr
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Application RebuildingApplication R
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Application RebuildingModifications
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Appendix A: Upgrading from Ingres 6
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Considerations for Ingres 6.4Decima
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Considerations for Ingres 6.4Applic
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Unload/Reload Procedure for Upgradi
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How You Upgrade from Ingres 6.4 Usi
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Corresponding Parameter NamesIngres
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Corresponding Parameter Names• Th
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Appendix B: Keywords This section c
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Reserved Single KeywordsSQLQUELKeyw
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Reserved Double KeywordsSQLQUELKeyw
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Reserved Double KeywordsKeyword Non
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Other Reserved KeywordsSQLQUELKeywo
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DBMS Server EnhancementsLOB Locator
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DBMS Server EnhancementsAutomatic S
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DBMS Server EnhancementsIncremental
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DBMS Server EnhancementsIn the FETC
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Connectivity EnhancementsServer Typ
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Connectivity Enhancements.NET Data
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New Features in the DBMS ServerANSI
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Ease of Use EnhancementsAutomatic C
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Connectivity EnhancementsODBC Enhan
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Supportability EnhancementSupport f
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Page 181 and 182: Changes to Existing FeaturesJDBC Us
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Page 189 and 190: Changes to Existing FeaturesCREATED
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Page 209 and 210: Sort EnhancementsDMF Sort Enhanceme
Page 211 and 212: Large Cache SupportLarge Cache Supp
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Page 221 and 222: Ingres ICE FeaturesIngres ICE Secur
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Ingres 9.2 Migration Guide - Actian

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