Firebird Null Guide NULL behaviour and pitfalls in Firebird SQL Paul Vinkenoog Version 1.2, 30 June 2020 Table of Contents 1. What is NULL? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2. NULL support in Firebird SQL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . operations will render the entire expression NULL. This guide explores the behaviour of NULL in Firebird SQL, points out common pitfalls and shows you how to deal safely with expressions that contain NULL or

Windows ....................................................................................... 3 SQL Migration Issues ................................................................................. this insecure for your network setup, the change the parameter Authentication in firebird. conf. SQL Migration Issues DDL Views made updatable via triggers no longer perform direct table operations in a chapter of its own in the accompanying Release Notes and also in Firebird's CVS tree in /doc/sql.extentions/README.keywords. You must ensure that your DSQL statements and procedure/trigger sources

2. SQL Language Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2.1. Background to Firebird’s SQL Language . . . 19 2.1.1. SQL Flavours . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2.1.2. SQL Dialects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 3.9.1. SQL_NULL Data Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2. SQL Sprachstruktur . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2.1. Hintergrund zu Firebirds SQL-Sprache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2.1.1. SQL Bestandteile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2.1.2. SQL-Dialekte. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Posix clients ........................................................................... 16 Firebird SQL .................................................................................................. server and tuning your installation, please refer to Chapters 4-6 of the Using Firebird manual, distributed on the IB- Phoenix CD. The Firebird Quick Start Guide started life as Chapter 1 of the Using Firebird file or decompressing a structured WinZip .zip file – it is strongly recommended that you use the distributed release kit the first time you install Firebird. The Windows executable installa- tion script,

License Notice in the Appendix This volume represents a compilation of topics concerning Firebird’s SQL language written by members of the Russian-speaking community of Firebird developers and users. In auspices of the Firebird Documentation Project. Preface 1 Table of Contents 1. About the Firebird SQL Language Reference: for Firebird 2.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. SQL Language Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2.1. Background to Firebird’s SQL Language

user . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 6.4. Firebird SQL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . earlier Back up your old security database security2.fdb. Firebird 5 comes with a SQL script security_database.sql (located in misc/upgrade/v3.0) that will recreate users in the Firebird 5 security snapshot build or decompressing a .zip archive — it is strongly recommended that you use the distributed release kit (.exe for Windows, .tar.gz for Linux), especially if this is the first time you install

..................................................................................... 23 Firebird SQL .................................................................................................. build or decompressing a structured .zip archive – it is strongly recommended that you use the distributed release kit (.exe for Windows, .rpm for Linux), especially if this is the first time you install database files. Users don't need, and should not have, access to the files – not even read-only. They query databases via the server, and the server makes sure that users only get the allowed type of access

Firebird Interactive SQL Utility Kamala Vadlamani, Paul Vinkenoog, Norman Dunbar, Mark Rotteveel Version 1.0, 24 December 2021 Table of Contents 1. Introduction. . . . . . . . . . . . . . . . . . ISC_PASSWORD Environment Variables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 11. SQL Dialects. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 18.18. SET SQL DIALECT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Руководство по языку SQL СУБД Firebird 3.0 Firebird 3.0.4 8 августа 2018 — v.0051-1 Спонсоры документации: Platinum Sponsor Gold Sponsor Руководство по языку SQL СУБД Firebird 3.0: Firebird 3.0.4 ................... 22 Подмножества SQL ........................................................................................................ 22 Диалекты SQL ..................................... ................................................................................... 47 Тип данных SQL_NULL .............................................................................................