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queries and ended up building forms. The first release of PL/SQL (and the later versions, for that matter) was not intended to be a comprehensive procedural language in the same league as, say, C or COBOL. Officially, it existed only to provide some programming constructs around the SQ[r]

of a debugger, the inability to read from and write to operating system files, no support for arrays, and other issues. Oracle Corporation has finally released versions of PL/SQL which address these complaints and are robust enough to support large-scale application development. To complement this r[r]

● User-defined datatypes such as objects and nested tables (with the Oracle objects option) PL/SQL is integrated tightly into Oracle's SQL language: you can execute SQL statements directly from your procedural program. Conversely, you can also call PL/SQL functions from within a SQL statement[r]

data, so you can allow for almost limitless growth. ● If you want to preserve the order of elements that get stored in the collection column and your dataset will be "small," use a VARRAY. What is "small?" I tend to think in terms of how much data you can fit into a single database block; if you spa[r]

updating of object data. These programming facilities provide performance improvements, with the added benefit that application code can now be more succinct. ● Ability to navigate using REFs (reference pointers). By designating unique identifiers as the basis of an object identifier ([r]

and created a solution? How do you do this? Break out of the confines of your hardened views and take a fresh look at the world (or maybe just your cubicle). Reassess the programming habits you've developed, particularly regarding fourth-generation language (4GL) development with the O[r]

Navigation Copyright (c) 2000 O'Reilly & Associates. All rights reserved. Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.By Steven Feuerstein & Bill Pribyl; ISBN 1-56592-335-9ESecond Edition, published September 1997.(See the c[r]

statement, the impact of a NULL statement is very different in each of these statements. The addition of an ELSE NULL clause to the IF statement has an impact only on the readability of the code. The Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.IF stateme[r]

Navigation Copyright (c) 2000 O'Reilly & Associates. All rights reserved. Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.By Steven Feuerstein & Bill Pribyl; ISBN 1-56592-335-9ESecond Edition, published September 1997.(See the c[r]

as a whole. 6.3.2.2 Vulnerability to data errorsIf an implicit SELECT statement returns more than one row, it raises the TOO_MANY_ROWS exception. When this happens, execution in the current block terminates and control is passed to the exception section. Unless you deliberately plan to handle this s[r]

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An unusual collection of essays containing detailed information about approaches toanalyzing bioinformatics data and the use of a vast array of online resources and toolsis:• Bioinformatics for Geneticists: A Bioinformatics Primer for the Analysis of GeneticData, Second Edition, by Michael R.[r]

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concern about using the trace.activated function in this way, however, is that a query against the tracetab_activate must be performed every time that trace.startup (and other trace "show" programs) is encountered. This could turn into an unacceptable amount of overhead if an application is well-mod[r]