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SQL Anywhere 12.0.0 (Français) » SQL Anywhere Server - Programming » Embedded SQL » The SQL descriptor area (SQLDA)

 

The SQLDA header file

The contents of sqlda.h are as follows:



#ifndef _SQLDA_H_INCLUDED
#define _SQLDA_H_INCLUDED
#define II_SQLDA

#include "sqlca.h"

#if defined( _SQL_PACK_STRUCTURES )
#include "pshpk1.h"
#endif

#define SQL_MAX_NAME_LEN  30

#define _sqldafar
typedef short int   a_sql_type;
struct sqlname 
{
  short int length; /* length of char data */
  char  data[ SQL_MAX_NAME_LEN ]; /* data */
}; 
struct sqlvar 
{   /* array of variable descriptors */
  short int  sqltype; /* type of host variable */
  a_sql_len  sqllen;  /* length of host variable */
  void      *sqldata; /* address of variable */
  a_sql_len *sqlind;  /* indicator variable pointer */
  struct sqlname  sqlname;
}; 
struct sqlda
{
  unsigned char sqldaid[8]; /* eye catcher "SQLDA" */
  a_sql_int32   sqldabc; /* length of sqlda structure */
  short int     sqln;    /* descriptor size in number of entries */
  short int     sqld;    /* number of variables found by DESCRIBE */
  struct sqlvar sqlvar[1]; /* array of variable descriptors */
};

typedef struct sqlda    SQLDA;
typedef struct sqlvar   SQLVAR, SQLDA_VARIABLE;
typedef struct sqlname  SQLNAME, SQLDA_NAME; 
#ifndef SQLDASIZE
#define SQLDASIZE(n)    ( sizeof( struct sqlda ) +  \
                          (n-1) * sizeof( struct sqlvar) )
#endif
#if defined( _SQL_PACK_STRUCTURES )
#include "poppk.h"
#endif
#endif