how to use it to perform tasks within the database.  This manual is a work in progress. It is subject to change and possible restructuring as new versions appear. 1.1. Audience This manual assumes internals and its usage is discouraged if you do not understand very well how these internals are subject to change between versions. 18.9. SET EXPLAIN Added in Firebird 3.0 SQL> SET EXPLAIN [ON | OFF]; Appendix A: Document History 74 Appendix B: License Notice The contents of this Documentation are subject to the Public Documentation License Version 1.0 (the “License”); you may only use this Documentation

introduction follows; please read it carefully! If you want to know more about the subject, buy DocBook – The Definitive Guide. Ausgabe: We use DocBook XML for our documentation. A short introduction follows; please read it carefully! If you want to know more about the subject, buy DocBook – The Definitive Guide. quote – literal Verwenden Sie quote für einen Inline-Bereich appendix mit dem Titel License Notice und folgendem Text an: The contents of this Documentation are subject to the Public Documentation License Version 1.0 (the „License“); you may only use this Documentation

Reference: for Firebird 2.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 1.1. Subject Matter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . with the Firebird relational database management system. It has a long history. 1.1. Subject Matter The subject matter of this volume is wholly Firebird’s implementation of the SQL relational database that contains no special or escape characters matches only strings that are identical to itself (subject to the collation in use). That is, it functions just like the ‘=’ operator: 'Apple' similar to 'Apple'

probably know. A side effect of this was that everything that was read from data and meta data became subject to "well-formedness" checks. Hence, on restoring, those previously stored source and BLR objects Appendix A: Document history 32 Appendix B: License notice The contents of this Documentation are subject to the Public Documentation License Version 1.0 (the “License”); you may only use this Documentation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 1.1. Subject. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . through their applications, with the Firebird relational database management system. 1.1. Subject The subject of this volume is wholly Firebird’s implementation of the SQL relational database language contains no special character or escape characters matches only strings that are identical to itself (subject to the collation in use). That is, it functions just like the ‘=’ operator: 'Apple' similar to

explained later. 10.2. Unique keys and indices 10.2.1. Firebird 1.0 In Firebird 1.0, unique keys are subject to the same restrictions as primary keys: the column(s) involved must be defined as NOT NULL. For Appendix B: Document history 64 Appendix C: License notice The contents of this Documentation are subject to the Public Documentation License Version 1.0 (the “License”); you may only use this Documentation

Firebird-InterBase Coexistence 8 Appendix C: License notice The contents of this Documentation are subject to the Public Documentation License Version 1.0 (the “Li- cense”); you may only use this Documentation

Appendix A: Document history 9 Appendix B: License notice The contents of this Documentation are subject to the Public Documentation License Version 1.0 (the “License”); you may only use this Documentation

Appendix A: Document history 8 Appendix B: License notice The contents of this Documentation are subject to the Public Documentation License Version 1.0 (the “License”); you may only use this Documentation

равноценной юридической силы. License notice (English version) The contents of this Documentation are subject to the Public Documentation License Version 1.0 (the «License»); you may only use this Documentation