old (and maybe long gone) InterBase or Firebird installation floating around your system (DLLs, Registry entries, environment variables…) 3.1. Installation kits At the Firebird website, https://firebirdsql symbols (“||”, or a pair of ASCII 124 without space between). In SQL, the “+” symbol is an arithmetic operator, and it will cause an error if you attempt to use it for concatenating strings. The following expression Notice that if neither operand is NULL, IS DISTINCT works exactly like the “<>” operator, and IS NOT DISTINCT like the “=” operator. IS DISTINCT and IS NOT DISTINCT always return true or false, never NULL

old (and maybe long gone) InterBase or Firebird installation floating around your system (DLLs, Registry entries, environment variables...) Installing the Firebird server Installation drives Firebird “pipe” symbols (ASCII 124, in a pair with no space between). In SQL, the “+” symbol is an arithmetic operator and it will cause an error if you attempt to use it for concatenating strings. The following expression Notice that if neither operand is NULL, DISTINCT works exactly like the “<>” operator, and NOT DISTINCT like the “=” operator. DISTINCT and NOT DISTINCT always return true or false, never NULL. Using

............................................................................................ 26 Registry ............................................................................................... section at the end of this chapter. Registry Key A Registry key is added and all Firebird 2.1-compliant applications should use this key if they need to read a Registry key to locate the correct version taught to isolate and configure instances reliably. Applications would then be able to enumerate the Registry entries to determine which Server instance they wish to load. Cleaning up release candidate installs

string literals or comments. Operator Syntax <operator> ::= operator> | operator> | operator> | operator> Chapter 2. SQL Language Structure concatentation operator> ::= "||" operator> ::= * | / | + | - | operator> ::= = | <> | != | ~= | ^= | > | < | >= | <= | !> | ~> | ^> | !< | ~< | ^< operator> ::= NOT Arithmetic operators The +, -, *, / characters used to calculate values Concatenation operator The || (“double-pipe”) operator used to concatenate strings Logical operators The reserved words NOT, AND and

comments. Operator Syntax <operator> ::= operator> | operator> | operator> | operator> operator> ::= "||" operator> ::= * | / | + | - | operator> ::= = | <> | != | ~= | ^= | > | < | >= | <= | !> | ~> | ^> | !< | ~< | ^< operator> ::= NOT | AND | OR For more details values. For example, field1 OR field2 and NOT field1 are valid expressions. The IS Operator Predicates can use the operator Boolean IS [NOT] for matching. For example, field1 IS FALSE, or field1 IS NOT TRUE

on. Between Firebird 1.5 RC1 and Firebird 1.5 final, lots of things have changed with regard to Registry keys and installation procedures. These things affect the way Firebird should be set up to coexist Windows system dir and rename it to GDS32.DLL. 2. Using the Windows command regedit.exe, look in your Registry under HKEY_LOCAL_MACHINE\Soft- ware\ for one of these two keys: FirebirdSQL\Firebird\CurrentVersion\RootDirectory installed in the registry” or something similar, good. If not, try just this: instreg install (Later RCs choke on the argument; they know what the correct install dir is and put it in the Registry themselves

never return NULL. 2.3. Assigning NULL Setting a field or variable to NULL is done with the ‘=’ operator, just like assigning values. You can also include NULL in an insert list or use it as input parameter You cannot — and should not — use the comparison operator ‘=’ to test if something is NULL… • …but you can — and often must — use the assignment operator ‘=’ to set something to NULL. 2.4. Testing DISTINCTness The above results can be generalised as follows for expressions with one type of binary boolean operator (and | or) and any number of operands: Disjunctions (“A or B or C or D or …”) 1. If at least one

комментариев. Синтаксис: <operator> ::= operator> | operator> | operator> | operator> operator> ::= {||} operator> ::= * | / | + | - | operator> ::= {=} | {<>} | {!=} | {~=} | {^=} | {>} | {<} | {>=} | {<=} | {!>} | {~>} | {^>} | {!<} | {~<} | {^<} {^<} operator> ::= NOT | AND | OR Подробнее об операторах см. Выражения. Комментарии В SQL скриптах, операторах SQL и PSQL модулях могут встречаться

Operatorsyntax <operator> ::= operator> | operator> | operator> | operator> operator> ::= "||" operator> ::= * * | / | + | - | operator> ::= = | <> | != | ~= | ^= | > | < | >= | <= | !> | ~> | ^> | !< | ~< | ^< operator> ::= NOT | AND | OR Weitere Informationen zu Operatoren finden NOT field1 gültige Ausdrücke. Chapter 3. Datentypen und Untertypen 38 Der IS-Operator Prädikate können den Operator Boolean IS [NOT] zum Abgleich verwenden. Zum Beispiel field1 IS FALSE oder field1

Firebird se este for diferente. Se o comando retornar “Firebird has been successfully installed in the registry” ou algo similar,bom. Se não, tente isto: instreg install Coexistência Firebird–InterBase 7