Difference between revisions of "Dbakey()"
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<input parameters> | <input parameters> | ||
| − | char *ndx; /* .NDX file descriptor | + | char *ndx; /* .NDX file descriptor */ |
| − | char key; | + | char key; /* Address of a buffer containing the key */ |
| − | long recno; /* Record number | + | long recno; /* Record number */ |
<output parameters> | <output parameters> | ||
| Line 37: | Line 37: | ||
#include "dbl.h" | #include "dbl.h" | ||
| − | + | char *ndx; /* .NDX file descriptor */ | |
| − | + | int rc; /* Return code */ | |
| − | + | rc=dbakey(ndx,"John Smith 5". (long)5); | |
| − | + | if (rc = = SUCCESS) printf("key added n"); | |
| − | + | else { | |
| − | + | printf("error number %d n", rc); | |
| − | + | exit (1); | |
| − | + | } | |
</code> | </code> | ||
Revision as of 12:09, 2 April 2009
PURPOSE
add key
SYNOPSIS
#include<dbl.h> int dbakey(ndx, key, recno) <input parameters> char *ndx; /* .NDX file descriptor */ char key; /* Address of a buffer containing the key */ long recno; /* Record number */ <output parameters> none
RETURN VALUE
The dbakey() function returns 0 for success, or<0 if an error occurs. See the section on return code values for a detailed list of return codes.
DESCRIPTION
This function adds a key with its associated record number to the specified .NDX file which contains keys in a B-tree structure.
EXAMPLE
The following example adds a character key "John Smith 5" and its associated record number 5 to the index file whose descriptor is in "char *ndx".
#include "dbl.h" char *ndx; /* .NDX file descriptor */ int rc; /* Return code */ rc=dbakey(ndx,"John Smith 5". (long)5); if (rc = = SUCCESS) printf("key added n"); else { printf("error number %d n", rc); exit (1); }
SEE ALSO
dbatokey(), dbicreat(), dbiflsh(), dbrmvkey(), dbtkey(), dbupdr()
