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[ 955006 ] wxDb query with column information (modded to overload instead of creating a new function)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@30321 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Ryan Norton 2004-11-06 20:32:34 +00:00
parent f5fb687186
commit f110f39530
2 changed files with 86 additions and 0 deletions
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1
include/wx/db.h
View File

@ -624,6 +624,7 @@ public:
bool CreateView(const wxString &viewName, const wxString &colList, const wxString &pSqlStmt, bool attemptDrop=true);
bool DropView(const wxString &viewName);
bool ExecSql(const wxString &pSqlStmt);
bool ExecSql(const wxString &pSqlStmt, wxDbColInf** columns, short& numcols);
bool GetNext(void);
bool GetData(UWORD colNo, SWORD cType, PTR pData, SDWORD maxLen, SDWORD FAR *cbReturned);
bool Grant(int privileges, const wxString &tableName, const wxString &userList = wxT("PUBLIC"));

85
src/common/db.cpp
View File

@ -2163,6 +2163,91 @@ bool wxDb::ExecSql(const wxString &pSqlStmt)
} // wxDb::ExecSql()
/********** wxDb::ExecSql() with column info **********/
bool wxDb::ExecSqlGetInf(const wxString &pSqlStmt, wxDbColInf** columns, short& numcols)
{
//execute the statement first
if (! ExecSql(pSqlStmt)) return false;
SWORD noCols;
if (SQLNumResultCols (hstmt, &noCols) != SQL_SUCCESS)
{
DispAllErrors(henv, hdbc, hstmt);
return false;
}
if (noCols == 0) return false;
else numcols = noCols;
// Get column information
short colNum;
UCHAR name[DB_MAX_COLUMN_NAME_LEN+1];
SWORD Sword;
SDWORD Sdword;
wxDbColInf* pColInf = new wxDbColInf[noCols];
//fill in column information (name, datatype)
for (colNum = 0; colNum < noCols; colNum++)
{
if (SQLColAttributes(hstmt,colNum+1, SQL_COLUMN_NAME,
name, sizeof(name),
&Sword, &Sdword) != SQL_SUCCESS)
{
DispAllErrors(henv, hdbc, hstmt);
delete[] pColInf;
return false;
}
wxStrncpy(pColInf[colNum].colName, (const char*) name, DB_MAX_COLUMN_NAME_LEN);
if (SQLColAttributes(hstmt,colNum+1, SQL_COLUMN_TYPE,
NULL, 0, &Sword, &Sdword) != SQL_SUCCESS)
{
DispAllErrors(henv, hdbc, hstmt);
delete[] pColInf;
return false;
}
switch (Sdword)
{
case SQL_VARCHAR:
case SQL_CHAR:
pColInf[colNum].dbDataType = DB_DATA_TYPE_VARCHAR;
break;
case SQL_TINYINT:
case SQL_SMALLINT:
case SQL_INTEGER:
case SQL_BIT:
pColInf[colNum].dbDataType = DB_DATA_TYPE_INTEGER;
break;
case SQL_DOUBLE:
case SQL_DECIMAL:
case SQL_NUMERIC:
case SQL_FLOAT:
case SQL_REAL:
pColInf[colNum].dbDataType = DB_DATA_TYPE_FLOAT;
break;
case SQL_DATE:
case SQL_TIMESTAMP:
pColInf[colNum].dbDataType = DB_DATA_TYPE_DATE;
break;
case SQL_BINARY:
pColInf[colNum].dbDataType = DB_DATA_TYPE_BLOB;
break;
#ifdef __WXDEBUG__
default:
wxString errMsg;
errMsg.Printf(wxT("SQL Data type %d currently not supported by wxWindows"), Sdword);
wxLogDebug(errMsg,wxT("ODBC DEBUG MESSAGE"));
#endif
}
}
*columns = pColInf;
return true;
} // wxDb::ExecSqlGetInf()
/********** wxDb::GetNext() **********/
bool wxDb::GetNext(void)
{