OpenEuphoria

1. edbi throwing error for update query

• Posted by Anthill May 27, 2011
• 1172 views

I am not sure what happened but recently my update query stopped working. Edbi works with select but not update.

Here is my code.

include db.e 
 
integer dbh = open_db("TM") 
sequence sql 
sequence row 
 
sql = "UPDATE STREET SET NAME = '5TH' WHERE ID = 560302;" 
--sql = "select * from STREET WHERE ID = 560302;" 
 
row = edbi:query_rows(sql) 
close_db() 

upon running

ant@anthill:/var/www/cgi$ eui update_test.ex 
 
/usr/share/euphoria/include/std/../../edbi/edbi/edbi.e:483 in function query()  
A machine-level exception occurred during execution of this statement  
 
... called from /usr/share/euphoria/include/std/../../edbi/edbi/edbi.e:566 in function query_rows()   
 
... called from /var/www/cgi/update_test.ex:14  
 
--> See ex.err  
 

at the end of ex.err it states:

 /var/www/cgi/update_test.ex: 
    dbh = 1 
    sql = {85'U',80'P',68'D',65'A',84'T',69'E',32' ',83'S',84'T',82'R',69'E', 
69'E',84'T',32' ',83'S',69'E',84'T',32' ',78'N',65'A',77'M',69'E',32' ', 
61'=',32' ',39''',53'5',84'T',72'H',39''',32' ',87'W',72'H',69'E',82'R', 
69'E',32' ',73'I',68'D',32' ',61'=',32' ',53'5',54'6',48'0',51'3',48'0', 
50'2',59';'} 
    row = <no value>    
 

When I follow through trace this is what happens:

472:  public function query(sequence sql, sequence data={}, db_handle h = 0) 
473:      sequence m_seq = get_seq(h) 
474:      atom m_q = eumem:malloc()   
475:        
476:      sequence m_q_seq = repeat(0, Q_END)     
477:      m_q_seq[Q_DB] = m_seq 
478:        
479:      object tmp   
480:      if m_seq[T_DLL_H] = NOT_A_DLL then      
481:          tmp = call_func(m_seq[T_DQUERY], { m_seq[T_DB_H], sprintf_sql(sql, data) })        
482:      else         
483==>        tmp = c_func(m_seq[T_DQUERY], { m_seq[T_DB_H], sprintf_sql(sql, data) })           
484:      end if  
 
182:  function sprintf_sql(sequence sql, object values)  
183:      sequence ns 
184:      integer in_fmt, idx, ch 
185: 
186:      if atom(values) or length(values) = 0 then 
187==>        return sql 
188:      end if 

So at line 187 'return sql' the error is thrown.

I KNOW that update statements worked in the recent past. Is this user error, a recent package update, permissions or something else????

Thanks.

3. Re: edbi throwing error for update query

• Posted by mattlewis (admin) May 27, 2011
• 1142 views

Looking at an example (and based on experience from using other DB libraries), you need to use execute() instead of query_rows() for DML queries.

Matt