Firebird: 2.5.5.26952
PHP: 5.6.20
Apache 2.2
Debian Gnu/Linux
Scriptcase: 8.1.038
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Base de dados de teste:
/*****************************************************************************/
/ Generated by IBExpert 2016.4.4.1 01/05/2016 20:07:50 /
/*****************************************************************************/
SET SQL DIALECT 3;
SET NAMES UTF8;
CREATE DATABASE ‘xxx.xxx.xxx.xxx:/xxxxxx/xxxxx/xxxxxxxxxx/xxxxxx.fdb’
USER ‘SYSDBA’ PASSWORD ‘xxxxxxxxx’
PAGE_SIZE 4096
DEFAULT CHARACTER SET UTF8 COLLATION UNICODE_CI_AI;
/*****************************************************************************/
/ Generators /
/*****************************************************************************/
CREATE GENERATOR GEN_HTMLBLOB_ID;
SET GENERATOR GEN_HTMLBLOB_ID TO 0;
/*****************************************************************************/
/ Tables /
/*****************************************************************************/
CREATE TABLE HTMLBLOB (
ID INTEGER NOT NULL,
HTML BLOB SUB_TYPE 1 SEGMENT SIZE 80
);
/*****************************************************************************/
/ Primary keys /
/*****************************************************************************/
ALTER TABLE HTMLBLOB ADD CONSTRAINT PK_HTMLBLOB PRIMARY KEY (ID);
/*****************************************************************************/
/ Triggers /
/*****************************************************************************/
SET TERM ^ ;
/*****************************************************************************/
/ Triggers for tables /
/*****************************************************************************/
/* Trigger: HTMLBLOB_BI */
CREATE TRIGGER HTMLBLOB_BI FOR HTMLBLOB
ACTIVE BEFORE INSERT POSITION 0
as
begin
if (new.id is null) then
new.id = gen_id(gen_htmlblob_id,1);
end
^
SET TERM ; ^
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[size=14pt]Formulário com campo blob autoincremento automático[/size].

[size=14pt]Por favor teste a aplicação em http://www.simaoebuhler.com.br/teste/htmlblob/grid_HTMLBLOB e veja se funciona.
Pode ver que já coloquei algum código html nos campos com o editor html.[/size]