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<!DOCTYPE HTML PUBLIC>
<HTML>
<TITLE>Xbase DBMS Appendix E</TITLE>
<BODY BGCOLOR=#FFFFFF>
<H2><p align="center">Error Codes</p></H2>
<p align="center">Chapter Updated 04/07/23</p><hr>
<h3>Error Codes and Error Processing</h3>
Alomost all Xbase64 methods and functions return and xbInt16 return code, which is zero or positive on success and negative
if an error condition occurs.
<br><br>
As of the 4.x.x release, the library has been extensively updated to use exception processing and most error
conditions will result in a mesage written to the logfile if logfile processing is enabled. The error routines
typically write two values to the logfile, an error code value and an iErrorStop value which identifies where
exactly in the library code the error occurred.
<br><br>
Error codes are defined in the xbretcod.h file.<br><br><br>
<TR><TH>File Type</TH><TH>Description</TH></TR>
<TR><TD>*.DBF</TD><TD>Main database file or Table</TD></TR>
<TR><TD>*.DBT</TD><TD>Memo file data</TD></TR>
<TR><TD>*.INF</TD><TD>INF - Behave like MS ODBC File. Used to auto open NDX index file</TD></TR>
<TR><TD>*.MDX</TD><TD>Production V4 index file, contains up to 47 tags. Automatically opened.</TD></TR>
<TR><TD>*.NDX</TD><TD>Non production V3 index files. Contains one tag per file. Automatically opened if included in ocrreespondin INF file.</TD></TR>
<br><br><br>
<table >
<TABLE BORDER>
<TR VALIGN="BASELINE">
<TR><TH>Description</TH><TH>Error Code</TH><TH>Category</TH></TR>
<TR><TD> XB_NO_ERROR </TD><TD> 0 </TD><TD> general </TD></TR>
<TR><TD> XB_NO_MEMORY </TD><TD> -100 </TD><TD> general </TD></TR>
<TR><TD> XB_INVALID_OPTION </TD><TD> -101 </TD><TD> general </TD></TR>
<TR><TD> XB_INVALID_PARAMETER </TD><TD> -102 </TD><TD> general </TD></TR>
<TR><TD> XB_DUP_TABLE_OR_ALIAS </TD><TD> -110 </TD><TD> table manager </TD></TR>
<TR><TD> XB_INVALID_NODELINK </TD><TD> -120 </TD><TD> linklist </TD></TR>
<TR><TD> XB_KEY_NOT_UNIQUE </TD><TD> -121 </TD><TD> linklist </TD></TR>
<TR><TD> XB_FILE_EXISTS </TD><TD> -200 </TD><TD> file </TD></TR>
<TR><TD> XB_ALREADY_OPEN </TD><TD> -201 </TD><TD> file </TD></TR>
<TR><TD> XB_DBF_FILE_NOT_OPEN </TD><TD> -202 </TD><TD> file </TD></TR>
<TR><TD> XB_FILE_NOT_FOUND </TD><TD> -203 </TD><TD> file </TD></TR>
<TR><TD> XB_FILE_TYPE_NOT_SUPPORTED</TD><TD> -204 </TD><TD> file </TD></TR>
<TR><TD> XB_RENAME_ERROR </TD><TD> -205 </TD><TD> file </TD></TR>
<TR><TD> XB_INVALID_OBJECT </TD><TD> -206 </TD><TD> file </TD></TR>
<TR><TD> XB_NOT_OPEN </TD><TD> -207 </TD><TD> file </TD></TR>
<TR><TD> XB_NOT_FOUND </TD><TD> -208 </TD><TD> file </TD></TR>
<TR><TD> XB_OPEN_ERROR </TD><TD> -209 </TD><TD> file </TD></TR>
<TR><TD> XB_CLOSE_ERROR </TD><TD> -210 </TD><TD> file </TD></TR>
<TR><TD> XB_SEEK_ERROR </TD><TD> -211 </TD><TD> file </TD></TR>
<TR><TD> XB_READ_ERROR </TD><TD> -212 </TD><TD> file </TD></TR>
<TR><TD> XB_WRITE_ERROR </TD><TD> -213 </TD><TD> file </TD></TR>
<TR><TD> XB_EOF </TD><TD> -214 </TD><TD> file </TD></TR>
<TR><TD> XB_BOF </TD><TD> -215 </TD><TD> file </TD></TR>
<TR><TD> XB_INVALID_BLOCK_SIZE </TD><TD> -216 </TD><TD> file </TD></TR>
<TR><TD> XB_INVALID_BLOCK_NO </TD><TD> -217 </TD><TD> file </TD></TR>
<TR><TD> XB_INVALID_RECORD </TD><TD> -218 </TD><TD> file </TD></TR>
<TR><TD> XB_DELETE_FAILED </TD><TD> -219 </TD><TD> file </TD></TR>
<TR><TD> XB_INVALID_TABLE_NAME </TD><TD> -220 </TD><TD> file </TD></TR>
<TR><TD> XB_EMPTY </TD><TD> -221 </TD><TD> file </TD></TR>
<TR><TD> XB_LIMIT_REACHED </TD><TD> -222 </TD><TD> file </TD></TR>
<TR><TD> XB_BLOCKREAD_NOT_ENABLED </TD><TD> -223 </TD><TD> file </TD></TR>
<TR><TD> XB_DIRECTORY_ERROR </TD><TD> -224 </TD><TD file </TD></TR>
<TR><TD> XB_INVALID_FIELD_TYPE </TD><TD> -300 </TD><TD> field </TD></TR>
<TR><TD> XB_INVALID_FIELD_NO </TD><TD> -301 </TD><TD> field </TD></TR>
<TR><TD> XB_INVALID_DATA </TD><TD> -302 </TD><TD> field </TD></TR>
<TR><TD> XB_INVALID_FIELD_NAME </TD><TD> -303 </TD><TD> field </TD></TR>
<TR><TD> XB_INVALID_MEMO_FIELD </TD><TD> -304 </TD><TD> field </TD></TR>
<TR><TD> XB_INVALID_FIELD </TD><TD> -305 </TD><TD> field </TD></TR>
<TR><TD> XB_INVALID_FIELD_LEN </TD><TD> -306 </TD><TD> field </TD></TR>
<TR><TD> XB_INVALID_DATE </TD><TD> -307 </TD><TD> date field </TD></TR>
<TR><TD> XB_INVALID_LOCK_OPTION </TD><TD> -400 </TD><TD> lock </TD></TR>
<TR><TD> XB_LOCK_FAILED </TD><TD> -401 </TD><TD> lock </TD></TR>
<TR><TD> XB_TABLE_NOT_LOCKED </TD><TD> -402 </TD><TD> lock - need table locked for operation </TD></TR>
<TR><TD> XB_PARSE_ERROR </TD><TD> -500 </TD><TD> expression </TD></TR>
<TR><TD> XB_INVALID_FUNCTION </TD><TD> -501 </TD><TD> expression </TD></TR>
<TR><TD> XB_INVALID_PARM </TD><TD> -502 </TD><TD> expression </TD></TR>
<TR><TD> XB_INCONSISTENT_PARM_LENS </TD><TD> -503 </TD><TD> expression </TD></TR>
<TR><TD> XB_INCOMPATIBLE_OPERANDS </TD><TD> -504 </TD><TD> expression </TD></TR>
<TR><TD> XB_UNBALANCED_PARENS </TD><TD> -505 </TD><TD> expression </TD></TR>
<TR><TD> XB_UNBALANCED_QUOTES </TD><TD> -506 </TD><TD> expression </TD></TR>
<TR><TD> XB_INVALID_EXPRESSION </TD><TD> -507 </TD><TD> expression </TD></TR>
<TR><TD> XB_INVALID_KEYNO </TD><TD> -600 </TD><TD> index </TD></TR>
<TR><TD> XB_INVALID_INDEX </TD><TD> -601 </TD><TD> index file error </TD></TR>
<TR><TD> XB_INVALID_TAG </TD><TD> -602 </TD><TD> invalid index tag name, must be <= 10 bytes </TD></TR>
<TR><TD> XB_INVALID_PAGE </TD><TD> -603 </TD><TD> invalid index page </TD></TR>
<TR><TD> XB_SYNTAX_ERROR </TD><TD> -700 </TD><TD> sql syntax error </TD></TR>
</TABLE>
<br><hr><br>
<p><img src="xbase.jpg"><br><hr>
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