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Home » U++ Library support » U++ SQL » ODBC Assertion failed
Re: ODBC Assertion failed [message #55851 is a reply to message #55850] Tue, 22 December 2020 18:49 Go to previous messageGo to previous message
mirek is currently offline  mirek
Messages: 14261
Registered: November 2005
Ultimate Member
One little issue: You are supposed to use Begin/End/Commit with your session, not query - that is deprecated. But in fact, the result should be the same (it just calls GetSession().Begin().. etc...)

For what is worth, I have altered SQL_MSSQL reference example to check the issue:

#include "app.h"

#include <Sql/sch_schema.h>
#include <Sql/sch_source.h>

using namespace Upp;

CONSOLE_APP_MAIN
{
	MSSQLSession mssql;
	if(!mssql.Connect("Driver={SQL Server Native Client 11.0};Server=localhost;Database=master;Trusted_Connection=Yes;")) {
		Cout() << "Connect failed: " << mssql.GetLastError() << '\n';
		return;
	}
	
	SQL = mssql;

	SqlSchema sch(MSSQL);
	StdStatementExecutor se(SQL.GetSession());
	All_Tables(sch);
	ODBCPerformScript(sch.Upgrade(), se);
	ODBCPerformScript(sch.Attributes(), se);

#ifdef _DEBUG
	mssql.SetTrace();
	mssql.LogErrors();
	mssql.ThrowOnError();
#endif

	
	SQL.Begin();
	try {
		for(int i = 0; i < 10; i++)
			SQL * Insert(TEST)(ID, i)(TEXT, String('A' + i, 1));
	}
	catch(SqlExc e)
	{
		DDUMP(e);
	}
	
	if(SQL.WasError()) {
		DLOG("There was ERROR!");
		SQL.Rollback();
	}
	else
		SQL.Commit();
	
	S_TEST tst;
	Sql sql;
	sql * Select(tst).From(TEST);
	while(sql.Fetch(tst))
		Cout() << tst.ID << ", " << tst.TEXT << '\n';
}


and everything works as expected...

Mirek
 
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