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Top Forums UNIX for Beginners Questions & Answers Migrating jobs from COBOL Mainframe system to UNIX system Post 303042533 by vbe on Saturday 28th of December 2019 06:07:32 AM
Old 12-28-2019
The most difficult is not the conversion, once you know what is going on you can figure out how long it will take, its more if you are talking of production, negociating the downtime, the time to transfer the last state of all the data then converting and validating the lot, you can leave the system in readonly and lock the system for update but having people accessing will impact transfer time etc...
cobol / Oracle under unix means you are not using a transaction monitor, lots of chances you lets that to Oracle... So its more what/how good is the design of the new database, are you DBA sure of their table structures... I would say an indexed file = table ( easy...) but do you have I dont know the term in English, in french it was "fichier relatif", that could give you some headaches...
 

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SQL::Translator::Parser::Oracle(3pm)			User Contributed Perl Documentation		      SQL::Translator::Parser::Oracle(3pm)

NAME
SQL::Translator::Parser::Oracle - parser for Oracle SYNOPSIS
use SQL::Translator; use SQL::Translator::Parser::Oracle; my $translator = SQL::Translator->new; $translator->parser("SQL::Translator::Parser::Oracle"); DESCRIPTION
From http://www.ss64.com/ora/table_c.html: CREATE [GLOBAL TEMPORARY] TABLE [schema.]table (tbl_defs,...) [ON COMMIT {DELETE|PRESERVE} ROWS] [storage_options | CLUSTER cluster_name (col1, col2,... ) | ORGANIZATION {HEAP [storage_options] | INDEX idx_organized_tbl_clause}] [LOB_storage_clause][varray_clause][nested_storage_clause] partitioning_options [[NO]CACHE] [[NO]MONITORING] [PARALLEL parallel_clause] [ENABLE enable_clause | DISABLE disable_clause] [AS subquery] tbl_defs: column datatype [DEFAULT expr] [column_constraint(s)] table_ref_constraint storage_options: PCTFREE int PCTUSED int INITTRANS int MAXTRANS int STORAGE storage_clause TABLESPACE tablespace [LOGGING|NOLOGGING] idx_organized_tbl_clause: storage_option(s) [PCTTHRESHOLD int] [COMPRESS int|NOCOMPRESS] [ [INCLUDING column_name] OVERFLOW [storage_option(s)] ] nested_storage_clause: NESTED TABLE nested_item STORE AS storage_table [RETURN AS {LOCATOR|VALUE} ] partitioning_options: Partition_clause {ENABLE|DISABLE} ROW MOVEMENT Column Constraints (http://www.ss64.com/ora/clause_constraint_col.html) CONSTRAINT constrnt_name {UNIQUE|PRIMARY KEY} constrnt_state CONSTRAINT constrnt_name CHECK(condition) constrnt_state CONSTRAINT constrnt_name [NOT] NULL constrnt_state CONSTRAINT constrnt_name REFERENCES [schema.]table[(column)] [ON DELETE {CASCADE|SET NULL}] constrnt_state constrnt_state [[NOT] DEFERRABLE] [INITIALLY {IMMEDIATE|DEFERRED}] [RELY | NORELY] [USING INDEX using_index_clause] [ENABLE|DISABLE] [VALIDATE|NOVALIDATE] [EXCEPTIONS INTO [schema.]table] Note that probably not all of the above syntax is supported, but the grammar was altered to better handle the syntax created by DDL::Oracle. AUTHOR
Ken Youens-Clark <kclark@cpan.org>. SEE ALSO
SQL::Translator, Parse::RecDescent, DDL::Oracle. perl v5.14.2 2012-01-18 SQL::Translator::Parser::Oracle(3pm)
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