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/* xbsql.cpp
XBase64 Software Library
Copyright (c) 1997,2003,2014,2022 Gary A Kunkel
The xb64 software library is covered under the terms of the GPL Version 3, 2007 license.
Email Contact:
XDB-devel@lists.sourceforge.net
XDB-users@lists.sourceforge.net
*/
#include "xbase.h"
#ifdef XB_SQL_SUPPORT
namespace xb{
/***********************************************************************/
xbSql::xbSql( xbXBase *x ){
xbase = x;
xbString sIxType;
#ifdef XB_MDX_SUPPORT
sIxType = "MDX";
#endif
#ifdef XB_NDX_SUPPORT
if( sIxType == "" )
sIxType = "NDX";
#endif
if( sIxType != "" )
uda.AddTokenForKey( "IXTYPE", sIxType );
}
/***********************************************************************/
xbSql::~xbSql(){
}
/***********************************************************************/
xbInt16 xbSql::ExecuteNonQuery( const xbString &sCmdLine ) {
// std::cout << "\n\n\nExecute() " << sCmdLine.Str() << "\n";
xbInt16 iRc = XB_NO_ERROR;
xbString sCmd = sCmdLine;
sCmd.Trim();
xbString sNode1;
sNode1.ExtractElement( sCmd.Str(), ' ', 1, 0 );
sNode1.ToUpperCase();
sNode1.Trim();
// std::cout << "node 1 = " << sNode1.Str() << std::endl;
if( sNode1 == "ALTER" ){
xbString sNode2;
sNode2.ExtractElement( sCmd.Str(), ' ', 2, 0 );
sNode2.ToUpperCase();
sNode2.Trim();
if( sNode2 == "TABLE" )
iRc = SqlAlterTable( sCmd );
else
iRc = XB_INVALID_FUNCTION;
} else if( sNode1 == "CREATE" ){
xbString sNode2;
sNode2.ExtractElement( sCmd.Str(), ' ', 2, 0 );
sNode2.ToUpperCase();
sNode2.Trim();
if( sNode2 == "TABLE" )
iRc = SqlCreateTable( sCmd );
#ifdef XB_INDEX_SUPPORT
else if( sNode2 == "INDEX" || sNode2 == "UNIQUE" )
iRc = SqlCreateIndex( sCmd );
#endif // XB_INDEX_SUPPORT
else
iRc = XB_INVALID_FUNCTION;
} else if( sNode1 == "DROP" ){
xbString sNode2;
sNode2.ExtractElement( sCmd.Str(), ' ', 2, 0 );
sNode2.ToUpperCase();
sNode2.Trim();
if( sNode2 == "TABLE" )
iRc = SqlDropTable( sCmd );
#ifdef XB_INDEX_SUPPORT
else if( sNode2 == "INDEX" )
iRc = SqlDropIndex( sCmd );
#endif // XB_INDEX_SUPPORT
else
iRc = XB_INVALID_FUNCTION;
} else if( sNode1 == "DELETE" || sNode1 == "UNDELETE" ){
iRc = SqlDelete( sCmd );
} else if( sNode1 == "HELP" )
SqlHelp();
else if( sNode1 == "INSERT" ){
iRc = SqlInsert( sCmd );
// else if( sNode1 == "UPDATE" )
// iRc = SqlUpdate( sCmd );
}
else if( sNode1 == "USE" )
iRc = SqlUse( sCmd );
else if( sNode1 == "SET" )
iRc = SqlSet( sCmd );
else
return XB_INVALID_FUNCTION;
return iRc;
}
/***********************************************************************/
xbXBase *xbSql::GetXbasePtr() const {
return xbase;
}
/***********************************************************************/
void xbSql::SqlHelp() const {
std::cout << "************************" << std::endl;
std::cout << "Valid XBase SQL commands" << std::endl << std::endl;
std::cout << "HELP" << std::endl;
std::cout << "ALTER TABLE tablename.DBF RENAME TO newtablename.DBF" << std::endl;
std::cout << "CREATE INDEX ixname.NDX ON tablename.dbf ( EXPRESSION ) [ASSOCIATE]" << std::endl;
std::cout << "CREATE [UNIQUE] INDEX tagname ON tablename.dbf ( EXPRESSION ) [DESC] [FILTER .NOT. DELETED()]" << std::endl;
std::cout << "CREATE TABLE tablename.DBF (Field1 CHAR(10), INTFLD1 INTEGER, ... )" << std::endl;
std::cout << "DELETE FROM tablename.DBF [WHERE expression]" << std::endl;
std::cout << "DROP INDEX [IF EXISTS] ixname.NDX ON tablename.DBF" << std::endl;
std::cout << "DROP TABLE [IF EXISTS] tablename.DBF" << std::endl;
std::cout << "INSERT INTO tablename (field1, field2, field3,...) VALUES ( 'charval', numval, {MM/DD/YY})" << std::endl;
std::cout << "SELECT FIELD1,FIELD2... FROM TABLE.DBF [WHERE expression] [ORDER BY TAG TAGNAME" << std::endl;
std::cout << "SET ATTRIBUTE = DATAVALUE" << std::endl;
std::cout << "SET ATTRIBUTE = ^ (to delete an entry)" << std::endl;
std::cout << "USE /dir/to/dbf/tables" << std::endl;
std::cout << "CREATE TABLE" << std::endl << std::endl << std::endl;
}
/***********************************************************************/
xbInt16 xbSql::SqlUse( const xbString &sCmdLine ){
xbString sNode2;
sNode2.ExtractElement( sCmdLine.Str(), ' ', 2, 0 );
sNode2.Trim();
xbase->SetDataDirectory( sNode2 );
// std::cout << "USE " << sNode2 << std::endl;
return XB_NO_ERROR;
}
/***********************************************************************/
} /* namespace */
#endif /* XB_SQL_SUPPORT */
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