db-lib. More...
#include <stdarg.h>
#include <time.h>
#include <assert.h>
#include <stdio.h>
#include "tds.h"
#include "tdsthread.h"
#include "sybfront.h"
#include "sybdb.h"
#include "syberror.h"
#include "dblib.h"
#include "tdsconvert.h"
#include "replacements.h"
#include "buffering.h"
Classes | |
| struct | _dblib_error_message |
For internal use only. More... | |
| struct | dblib_context |
For internal use only. More... | |
Defines | |
| #define | SYBDBLIB 1 |
| |
Typedefs | |
| typedef struct _dblib_error_message | DBLIB_ERROR_MESSAGE |
| typedef struct dblib_context | DBLIBCONTEXT |
Functions | |
| static int | _db_get_server_type (int bindtype) |
| static int | _dbnullable (DBPROCESS *dbproc, int column) |
| static char * | _dbprdate (char *timestr) |
| static RETCODE | _dbresults (DBPROCESS *dbproc) |
| static int | _get_printable_size (TDSCOLUMN *colinfo) |
| static void | copy_data_to_host_var (DBPROCESS *, int, const BYTE *, DBINT, int, BYTE *, DBINT, int, DBSMALLINT *) |
| BYTE * | dbadata (DBPROCESS *dbproc, int computeid, int column) |
| Get address of compute column data. | |
| DBINT | dbadlen (DBPROCESS *dbproc, int computeid, int column) |
| Get size of data in a compute column. | |
| RETCODE | dbaltbind (DBPROCESS *dbproc, int computeid, int column, int vartype, DBINT varlen, BYTE *varaddr) |
| Bind a compute column to a program variable. | |
| int | dbaltcolid (DBPROCESS *dbproc, int computeid, int column) |
| Get column ID of a compute column. | |
| DBINT | dbaltlen (DBPROCESS *dbproc, int computeid, int column) |
| Get size of data in compute column. | |
| int | dbaltop (DBPROCESS *dbproc, int computeid, int column) |
| Get aggregation operator for a compute column. | |
| int | dbalttype (DBPROCESS *dbproc, int computeid, int column) |
| Get datatype for a compute column. | |
| DBINT | dbaltutype (DBPROCESS *dbproc, int computeid, int column) |
| Get user-defined datatype of a compute column. | |
| RETCODE | dbanullbind (DBPROCESS *dbproc, int computeid, int column, DBINT *indicator) |
| Tie a null-indicator to a compute result column. | |
| RETCODE | dbbind (DBPROCESS *dbproc, int column, int vartype, DBINT varlen, BYTE *varaddr) |
| Tie a host variable to a resultset column. | |
| static int | dbbindtype (int datatype) |
| BYTE * | dbbylist (DBPROCESS *dbproc, int computeid, int *size) |
Get bylist for a compute row. | |
| RETCODE | dbcancel (DBPROCESS *dbproc) |
| Cancel the current command batch. | |
| RETCODE | dbcanquery (DBPROCESS *dbproc) |
| Cancel the query currently being retrieved, discarding all pending rows. | |
| char * | dbchange (DBPROCESS *dbproc) |
| See if a command caused the current database to change. | |
| void | dbclose (DBPROCESS *dbproc) |
| Close a connection to the server and free associated resources. | |
| void | dbclrbuf (DBPROCESS *dbproc, DBINT n) |
| Clear n rows from the row buffer. | |
| RETCODE | dbclropt (DBPROCESS *dbproc, int option, char *param) |
| Reset an option. | |
| RETCODE | dbcmd (DBPROCESS *dbproc, const char *cmdstring) |
Append SQL to the command buffer. | |
| RETCODE | dbcmdrow (DBPROCESS *dbproc) |
For internal use only.
| |
| RETCODE | dbcolinfo (DBPROCESS *dbproc, CI_TYPE type, DBINT column, DBINT computeid, DBCOL *pdbcol) |
| Get a bunch of column attributes with a single call (Microsoft-compatibility feature). | |
| DBINT | dbcollen (DBPROCESS *dbproc, int column) |
| Get size of a regular result column. | |
| char * | dbcolname (DBPROCESS *dbproc, int column) |
| Return name of a regular result column. | |
| char * | dbcolsource (DBPROCESS *dbproc, int column) |
| Get base database column name for a result set column. | |
| int | dbcoltype (DBPROCESS *dbproc, int column) |
| Get the datatype of a regular result set column. | |
| DBTYPEINFO * | dbcoltypeinfo (DBPROCESS *dbproc, int column) |
| Get precision and scale information for a regular result column. | |
| int | dbcolutype (DBPROCESS *dbproc, int column) |
| Get user-defined datatype of a regular result column. | |
| DBINT | dbconvert (DBPROCESS *dbproc, int srctype, const BYTE *src, DBINT srclen, int desttype, BYTE *dest, DBINT destlen) |
| Convert one datatype to another. | |
| DBINT | dbconvert_ps (DBPROCESS *dbproc, int srctype, BYTE *src, DBINT srclen, int desttype, BYTE *dest, DBINT destlen, DBTYPEINFO *typeinfo) |
| cf. | |
| DBINT | dbcount (DBPROCESS *dbproc) |
For internal use only.
| |
| int | dbcurcmd (DBPROCESS *dbproc) |
For internal use only.
| |
| DBINT | dbcurrow (DBPROCESS *dbproc) |
For internal use only.
| |
| BYTE * | dbdata (DBPROCESS *dbproc, int column) |
| Get address of data in a regular result column. | |
| RETCODE | dbdatecmp (DBPROCESS *dbproc, DBDATETIME *d1, DBDATETIME *d2) |
| Compare DBDATETIME values, similar to strcmp(3). | |
| RETCODE | dbdatecrack (DBPROCESS *dbproc, DBDATEREC *di, DBDATETIME *datetime) |
| Break a DBDATETIME value into useful pieces. | |
| DBINT | dbdatlen (DBPROCESS *dbproc, int column) |
| Get size of current row's data in a regular result column. | |
| DBBOOL | dbdead (DBPROCESS *dbproc) |
For internal use only.
| |
| EHANDLEFUNC | dberrhandle (EHANDLEFUNC handler) |
| Set an error handler, for messages from db-lib. | |
| void | dbexit () |
| Close server connections and free all related structures. | |
| RETCODE | dbfcmd (DBPROCESS *dbproc, const char *fmt,...) |
printf-like way to form SQL to send to the server. | |
| DBINT | dbfirstrow (DBPROCESS *dbproc) |
For internal use only.
| |
| void | dbfreebuf (DBPROCESS *dbproc) |
Erase the command buffer, in case DBNOAUTOFREE was set with dbsetopt(). | |
| char * | dbgetchar (DBPROCESS *dbproc, int pos) |
| Get address of a position in the command buffer. | |
| int | dbgetmaxprocs (void) |
| get maximum simultaneous connections db-lib will open to the server. | |
| static RETCODE | dbgetnull (DBPROCESS *dbproc, int bindtype, int varlen, BYTE *varaddr) |
For internal use only. dbbind() says: "Note that if varlen is 0, no padding takes place" dbgetnull() will not pad varaddr unless varlen is positive. | |
| int | dbgetpacket (DBPROCESS *dbproc) |
| Get TDS packet size for the connection. | |
| RETCODE | dbgetrow (DBPROCESS *dbproc, DBINT row) |
| Read a row from the row buffer. | |
| int | dbgettime (void) |
| Get maximum seconds db-lib waits for a server response to query. | |
| BYTE * | dbgetuserdata (DBPROCESS *dbproc) |
Get address of user-allocated data from a DBPROCESS. | |
| DBBOOL | dbhasretstat (DBPROCESS *dbproc) |
| Determine if query generated a return status number. | |
| RETCODE | dbinit (void) |
| Initialize db-lib. | |
| int | dbiordesc (DBPROCESS *dbproc) |
For internal use only.
| |
| int | dbiowdesc (DBPROCESS *dbproc) |
For internal use only.
| |
| DBBOOL | dbisavail (DBPROCESS *dbproc) |
| DBBOOL | dbisopt (DBPROCESS *dbproc, int option, char *param) |
| Get value of an option. | |
| DBINT | dblastrow (DBPROCESS *dbproc) |
For internal use only.
| |
| LOGINREC * | dblogin (void) |
Allocate a LOGINREC structure. | |
| void | dbloginfree (LOGINREC *login) |
free the LOGINREC | |
| RETCODE | dbmny4add (DBPROCESS *dbproc, DBMONEY4 *m1, DBMONEY4 *m2, DBMONEY4 *sum) |
| Add two DBMONEY4 values. | |
| int | dbmny4cmp (DBPROCESS *dbproc, DBMONEY4 *m1, DBMONEY4 *m2) |
| Compare two DBMONEY4 values. | |
| RETCODE | dbmny4copy (DBPROCESS *dbproc, DBMONEY4 *src, DBMONEY4 *dest) |
| Copy a DBMONEY4 value. | |
| RETCODE | dbmny4divide (DBPROCESS *dbproc, DBMONEY4 *m1, DBMONEY4 *m2, DBMONEY4 *quotient) |
| Divide two DBMONEY4 values. | |
| RETCODE | dbmny4minus (DBPROCESS *dbproc, DBMONEY4 *src, DBMONEY4 *dest) |
| Negate a DBMONEY4 value. | |
| RETCODE | dbmny4mul (DBPROCESS *dbproc, DBMONEY4 *m1, DBMONEY4 *m2, DBMONEY4 *prod) |
| Multiply two DBMONEY4 values. | |
| RETCODE | dbmny4sub (DBPROCESS *dbproc, DBMONEY4 *m1, DBMONEY4 *m2, DBMONEY4 *diff) |
| Subtract two DBMONEY4 values. | |
| RETCODE | dbmny4zero (DBPROCESS *dbproc, DBMONEY4 *dest) |
| Zero a DBMONEY4 value. | |
| RETCODE | dbmnyadd (DBPROCESS *dbproc, DBMONEY *m1, DBMONEY *m2, DBMONEY *sum) |
| Add two DBMONEY values. | |
| int | dbmnycmp (DBPROCESS *dbproc, DBMONEY *m1, DBMONEY *m2) |
| Compare two DBMONEY values. | |
| RETCODE | dbmnycopy (DBPROCESS *dbproc, DBMONEY *src, DBMONEY *dest) |
| Copy a DBMONEY value. | |
| RETCODE | dbmnydec (DBPROCESS *dbproc, DBMONEY *amount) |
| Subtract $0.0001 from a DBMONEY value. | |
| RETCODE | dbmnydivide (DBPROCESS *dbproc, DBMONEY *m1, DBMONEY *m2, DBMONEY *quotient) |
| Divide two DBMONEY values. | |
| RETCODE | dbmnydown (DBPROCESS *dbproc, DBMONEY *amount, int divisor, int *remainder) |
| Divide a DBMONEY value by a positive integer. | |
| RETCODE | dbmnyinc (DBPROCESS *dbproc, DBMONEY *amount) |
| Add $0.0001 to a DBMONEY value. | |
| RETCODE | dbmnyinit (DBPROCESS *dbproc, DBMONEY *amount, int trim, DBBOOL *negative) |
| Prepare a DBMONEY value for use with dbmnyndigit(). | |
| RETCODE | dbmnymaxneg (DBPROCESS *dbproc, DBMONEY *amount) |
| Get maximum negative DBMONEY value supported. | |
| RETCODE | dbmnymaxpos (DBPROCESS *dbproc, DBMONEY *amount) |
| Get maximum positive DBMONEY value supported. | |
| RETCODE | dbmnyminus (DBPROCESS *dbproc, DBMONEY *src, DBMONEY *dest) |
| Negate a DBMONEY value. | |
| RETCODE | dbmnymul (DBPROCESS *dbproc, DBMONEY *m1, DBMONEY *m2, DBMONEY *prod) |
| Multiply two DBMONEY values. | |
| RETCODE | dbmnyndigit (DBPROCESS *dbproc, DBMONEY *mnyptr, DBCHAR *digit, DBBOOL *zero) |
| Get the least significant digit of a DBMONEY value, represented as a character. | |
| RETCODE | dbmnyscale (DBPROCESS *dbproc, DBMONEY *amount, int multiplier, int addend) |
| Multiply a DBMONEY value by a positive integer, and add an amount. | |
| RETCODE | dbmnysub (DBPROCESS *dbproc, DBMONEY *m1, DBMONEY *m2, DBMONEY *difference) |
| Subtract two DBMONEY values. | |
| RETCODE | dbmnyzero (DBPROCESS *dbproc, DBMONEY *dest) |
| Set a DBMONEY value to zero. | |
| const char * | dbmonthname (DBPROCESS *dbproc, char *language, int monthnum, DBBOOL shortform) |
| Get name of a month, in some human language. | |
| RETCODE | dbmorecmds (DBPROCESS *dbproc) |
| See if more commands are to be processed. | |
| RETCODE | dbmoretext (DBPROCESS *dbproc, DBINT size, BYTE *text) |
| Send chunk of a text/image value to the server. | |
| MHANDLEFUNC | dbmsghandle (MHANDLEFUNC handler) |
| Set a message handler, for messages from the server. | |
| char * | dbname (DBPROCESS *dbproc) |
| Get name of current database. | |
| RETCODE | dbnextrow (DBPROCESS *dbproc) |
| Read result row into the row buffer and into any bound host variables. | |
| RETCODE | dbnullbind (DBPROCESS *dbproc, int column, DBINT *indicator) |
| Tie a null-indicator to a regular result column. | |
| int | dbnumalts (DBPROCESS *dbproc, int computeid) |
| Get count of columns in a compute row. | |
| int | dbnumcols (DBPROCESS *dbproc) |
| Return number of regular columns in a result set. | |
| int | dbnumcompute (DBPROCESS *dbproc) |
Get count of COMPUTE clauses for a result set. | |
| int | dbnumrets (DBPROCESS *dbproc) |
| Get count of output parameters filled by a stored procedure. | |
| int | dbperror (DBPROCESS *dbproc, DBINT msgno, long errnum,...) |
For internal use only.
| |
| RETCODE | dbpoll (DBPROCESS *dbproc, long milliseconds, DBPROCESS **ready_dbproc, int *return_reason) |
| See if a server response has arrived. | |
| void | dbprhead (DBPROCESS *dbproc) |
| Print result set headings to stdout. | |
| RETCODE | dbprrow (DBPROCESS *dbproc) |
| Print a result set to stdout. | |
| const char * | dbprtype (int token) |
| Print a token value's name to a buffer. | |
| STATUS | dbreadtext (DBPROCESS *dbproc, void *buf, DBINT bufsize) |
| Fetch part of a text or image value from the server. | |
| void | dbrecftos (char *filename) |
| Record to a file all SQL commands sent to the server. | |
| RETCODE | dbregexec (DBPROCESS *dbproc, DBUSMALLINT options) |
| Execute a registered procedure. | |
| RETCODE | dbreginit (DBPROCESS *dbproc, DBCHAR *procedure_name, DBSMALLINT namelen) |
| Ready execution of a registered procedure. | |
| RETCODE | dbreglist (DBPROCESS *dbproc) |
| Get names of Open Server registered procedures. | |
| RETCODE | dbregparam (DBPROCESS *dbproc, char *param_name, int type, DBINT datalen, BYTE *data) |
| Describe parameter of registered procedure . | |
| RETCODE | dbresults (DBPROCESS *dbproc) |
| Set up query results. | |
| BYTE * | dbretdata (DBPROCESS *dbproc, int retnum) |
| Get value of an output parameter filled by a stored procedure. | |
| int | dbretlen (DBPROCESS *dbproc, int retnum) |
| Get size of an output parameter filled by a stored procedure. | |
| char * | dbretname (DBPROCESS *dbproc, int retnum) |
| Get name of an output parameter filled by a stored procedure. | |
| DBINT | dbretstatus (DBPROCESS *dbproc) |
| Fetch status value returned by query or remote procedure call. | |
| int | dbrettype (DBPROCESS *dbproc, int retnum) |
| Get datatype of a stored procedure's return parameter. | |
| RETCODE | dbrows (DBPROCESS *dbproc) |
For internal use only.
| |
| STATUS | dbrowtype (DBPROCESS *dbproc) |
For internal use only.
| |
| void | dbrpwclr (LOGINREC *login) |
| Clear remote passwords from the LOGINREC structure. | |
| RETCODE | dbrpwset (LOGINREC *login, char *srvname, char *password, int pwlen) |
| Add a remote password to the LOGINREC structure. | |
| RETCODE | dbsafestr (DBPROCESS *dbproc, const char *src, DBINT srclen, char *dest, DBINT destlen, int quotetype) |
| safely quotes character values in SQL text. | |
| char * | dbservcharset (DBPROCESS *dbproc) |
Get syscharset name of the server character set. | |
| void | dbsetavail (DBPROCESS *dbproc) |
For internal use only.
| |
| RETCODE | dbsetdefcharset (char *charset) |
| Set the default character set. | |
| RETCODE | dbsetdeflang (char *language) |
| Set the default character set for an application. | |
| void | dbsetifile (char *filename) |
set name and location of the interfaces file FreeTDS should use to look up a servername. | |
| void | dbsetinterrupt (DBPROCESS *dbproc, DB_DBCHKINTR_FUNC chkintr, DB_DBHNDLINTR_FUNC hndlintr) |
| Set interrupt handler for db-lib to use while blocked against a read from the server. | |
| RETCODE | dbsetlbool (LOGINREC *login, int value, int which) |
For internal use only.
| |
| RETCODE | dbsetllong (LOGINREC *login, long value, int which) |
For internal use only.
| |
| RETCODE | dbsetlname (LOGINREC *login, const char *value, int which) |
For internal use only.
| |
| RETCODE | dbsetlogintime (int seconds) |
| Set maximum seconds db-lib waits for a server response to a login attempt. | |
| RETCODE | dbsetlshort (LOGINREC *login, int value, int which) |
For internal use only.
| |
| RETCODE | dbsetlversion (LOGINREC *login, BYTE version) |
| Set TDS version for future connections. | |
| RETCODE | dbsetmaxprocs (int maxprocs) |
| Set maximum simultaneous connections db-lib will open to the server. | |
| RETCODE | dbsetnull (DBPROCESS *dbproc, int bindtype, int bindlen, BYTE *bindval) |
| Define substitution values to be used when binding null values. | |
| RETCODE | dbsetopt (DBPROCESS *dbproc, int option, const char *char_param, int int_param) |
| Set db-lib or server option. | |
| RETCODE | dbsetrow (DBPROCESS *dbproc, DBINT row) |
| Make a buffered row "current" without fetching it into bound variables. | |
| RETCODE | dbsettime (int seconds) |
| Set maximum seconds db-lib waits for a server response to query. | |
| void | dbsetuserdata (DBPROCESS *dbproc, BYTE *ptr) |
Associate client-allocated (and defined) data with a DBPROCESS. | |
| RETCODE | dbsetversion (DBINT version) |
| Specify a db-lib version level. | |
| int | dbspid (DBPROCESS *dbproc) |
Get server process ID for a DBPROCESS. | |
| RETCODE | dbspr1row (DBPROCESS *dbproc, char *buffer, DBINT buf_len) |
| Print a regular result row to a buffer. | |
| DBINT | dbspr1rowlen (DBPROCESS *dbproc) |
| Determine size buffer required to hold the results returned by dbsprhead(), dbsprline(), and dbspr1row(). | |
| RETCODE | dbsprhead (DBPROCESS *dbproc, char *buffer, DBINT buf_len) |
| Print result set headings to a buffer. | |
| RETCODE | dbsprline (DBPROCESS *dbproc, char *buffer, DBINT buf_len, DBCHAR line_char) |
| Get formatted string for underlining dbsprhead() column names. | |
| RETCODE | dbsqlexec (DBPROCESS *dbproc) |
| send the SQL command to the server and wait for an answer. | |
| RETCODE | dbsqlok (DBPROCESS *dbproc) |
| Wait for results of a query from the server. | |
| RETCODE | dbsqlsend (DBPROCESS *dbproc) |
| Transmit the command buffer to the server. | |
| int | dbstrbuild (DBPROCESS *dbproc, char *charbuf, int bufsize, char *text, char *formats,...) |
| Build a printable string from text containing placeholders for variables. | |
| RETCODE | dbstrcpy (DBPROCESS *dbproc, int start, int numbytes, char *dest) |
| Get a copy of a chunk of the command buffer. | |
| static RETCODE | dbstring_assign (DBSTRING **dbstrp, const char *p) |
| static RETCODE | dbstring_concat (DBSTRING **dbstrp, const char *p) |
| static void | dbstring_free (DBSTRING **dbstrp) |
| static char * | dbstring_get (DBSTRING *dbstr) |
| static int | dbstring_getchar (DBSTRING *dbstr, int i) |
| static DBINT | dbstring_length (DBSTRING *dbstr) |
| int | dbstrlen (DBPROCESS *dbproc) |
| Get size of the command buffer, in bytes. | |
| RETCODE | dbtablecolinfo (DBPROCESS *dbproc, DBINT column, DBCOL *pdbcol) |
| describe table column attributes with a single call (Freetds-only API function modelled on dbcolinfo) | |
| int | dbtds (DBPROCESS *dbproc) |
For internal use only.
| |
| DBBINARY * | dbtxptr (DBPROCESS *dbproc, int column) |
| Get text pointer for a column in the current row. | |
| DBBINARY * | dbtxtimestamp (DBPROCESS *dbproc, int column) |
| Get text timestamp for a column in the current row. | |
| RETCODE | dbuse (DBPROCESS *dbproc, const char *name) |
| Change current database. | |
| DBINT | dbvarylen (DBPROCESS *dbproc, int column) |
| Determine whether a column can vary in size. | |
| const char * | dbversion () |
| See which version of db-lib is in use. | |
| DBBOOL | dbwillconvert (int srctype, int desttype) |
| Test whether or not a datatype can be converted to another datatype. | |
| RETCODE | dbwritetext (DBPROCESS *dbproc, char *objname, DBBINARY *textptr, DBTINYINT textptrlen, DBBINARY *timestamp, DBBOOL log, DBINT size, BYTE *text) |
| Send text or image data to the server. | |
| static int | default_err_handler (DBPROCESS *dbproc, int severity, int dberr, int oserr, char *dberrstr, char *oserrstr) |
For internal use only.
| |
| static DBOPTION * | init_dboptions (void) |
| static const char * | prdbresults_state (int retcode) |
| static const char * | prdbretcode (int retcode) |
| static const char * | prresult_type (int result_type) |
| static const char * | prretcode (int retcode) |
| static | TDS_MUTEX_DECLARE (dblib_mutex) |
| static char * | tds_prdatatype (TDS_SERVER_TYPE datatype_token) |
| TDS_RCSID (var,"$Id: dblib.c,v 1.320.2.1 2008/05/26 12:49:56 freddy77 Exp $") | |
| DBPROCESS * | tdsdbopen (LOGINREC *login, const char *server, int msdblib) |
For internal use only.
| |
Variables | |
| EHANDLEFUNC | _dblib_err_handler = default_err_handler |
| MHANDLEFUNC | _dblib_msg_handler = NULL |
| static const DBLIB_ERROR_MESSAGE | dblib_error_messages [] |
| static NULLREP | default_null_representations [MAXBINDTYPES] |
| static int | errno = 0 |
| static DBLIBCONTEXT | g_dblib_ctx |
| static int | g_dblib_version |
| static const DBBINARY | null_BINARY = 0 |
| static const DBCHAR | null_CHAR = '\0' |
| static const DBDATETIME | null_DATETIME = { 0, 0 } |
| static const DBFLT8 | null_FLT8 = 0 |
| static const DBINT | null_INT = 0 |
| static const DBMONEY | null_MONEY = { 0, 0 } |
| static const DBNUMERIC | null_NUMERIC = { 0, 0, {0} } |
| static const DBREAL | null_REAL = 0 |
| static const DBDATETIME4 | null_SMALLDATETIME = { 0, 0 } |
| static const DBSMALLINT | null_SMALLINT = 0 |
| static const DBMONEY4 | null_SMALLMONEY = {0} |
| static const DBTINYINT | null_TINYINT = 0 |
| static const DBVARYCHAR | null_VARYCHAR = { 0, {0} } |
| static const char *const | opttext [DBNUMOPTIONS] |
| const char | STD_DATETIME_FMT [] |
db-lib.
| RETCODE dbcolinfo | ( | DBPROCESS * | dbproc, | |
| CI_TYPE | type, | |||
| DBINT | column, | |||
| DBINT | computeid, | |||
| DBCOL * | pdbcol | |||
| ) |
Get a bunch of column attributes with a single call (Microsoft-compatibility feature).
| dbproc | contains all information needed by db-lib to manage communications with the server. | |
| type | must be CI_REGULAR or CI_ALTERNATE (CI_CURSOR is defined by the vendor, but is not yet implemented). | |
| column | Nth in the result set, starting from 1. | |
| computeid | (ignored) | |
| pdbcol | address of structure to be populated by this function. |
| static RETCODE dbgetnull | ( | DBPROCESS * | dbproc, | |
| int | bindtype, | |||
| int | varlen, | |||
| BYTE * | varaddr | |||
| ) | [static] |
For internal use only.
dbbind() says: "Note that if varlen is 0, no padding takes place" dbgetnull() will not pad varaddr unless varlen is positive.
Vartype Program Type Padding Terminator ------------------- -------------- -------------- ---------- CHARBIND DBCHAR blanks none STRINGBIND DBCHAR blanks NTBSTRINGBIND DBCHAR none VARYCHARBIND DBVARYCHAR none none BOUNDARYBIND DBCHAR none SENSITIVITYBIND DBCHAR none
NULLREP default_null_representations[MAXBINDTYPES] [static] |
Initial value:
{
{ NULL, 0 }
, { NULL, 0 }
, { (BYTE*) &null_CHAR, sizeof(null_CHAR) }
, { (BYTE*) &null_VARYCHAR, sizeof(null_VARYCHAR) }
, { &null_BINARY, sizeof(null_BINARY) }
, { NULL, 0 }
, { &null_TINYINT, sizeof(null_TINYINT) }
, { (BYTE*) &null_SMALLINT, sizeof(null_SMALLINT) }
, { (BYTE*) &null_INT, sizeof(null_INT) }
, { (BYTE*) &null_FLT8, sizeof(null_FLT8) }
, { (BYTE*) &null_REAL, sizeof(null_REAL) }
, { (BYTE*) &null_DATETIME, sizeof(null_DATETIME) }
, { (BYTE*) &null_SMALLDATETIME, sizeof(null_SMALLDATETIME) }
, { (BYTE*) &null_MONEY, sizeof(null_MONEY) }
, { (BYTE*) &null_SMALLMONEY, sizeof(null_SMALLMONEY) }
, { NULL, 0 }
, { &null_BIT, sizeof(null_BIT) }
, { (BYTE*) &null_NUMERIC, sizeof(null_NUMERIC) }
, { (BYTE*) &null_NUMERIC, sizeof(null_NUMERIC) }
}
1.5.4