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dba_schema.cpp
Package: mysql-4.1.16-win-src.zip [view]
Upload User: romrleung
Upload Date: 2022-05-23
Package Size: 18897k
Code Size: 4k
Category:
MySQL
Development Platform:
Visual C++
- /* Copyright (C) 2003 MySQL AB
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
- #include "dba_internal.hpp"
- #include "NdbSchemaCon.hpp"
- static bool getNdbAttr(DBA_DataTypes_t,
- Size_t,
- int * attrSize,
- int * arraySize,
- AttrType * attrType);
- extern "C"
- DBA_Error_t
- DBA_CreateTable(const char* TableName,
- int NbColumns,
- const DBA_ColumnDesc_t Columns[] ){
- if(DBA_TableExists(TableName))
- return DBA_NO_ERROR;
- NdbSchemaCon * schemaCon = NdbSchemaCon::startSchemaTrans(DBA__TheNdb);
- if(schemaCon == 0){
- DBA__SetLatestError(DBA_NDB_ERROR, 0,
- "Internal NDB error: No schema transaction");
- return DBA_NDB_ERROR;
- }
- NdbSchemaOp * schemaOp = schemaCon->getNdbSchemaOp();
- if(schemaOp == 0){
- NdbSchemaCon::closeSchemaTrans(schemaCon);
- DBA__SetLatestError(DBA_NDB_ERROR, 0,
- "Internal NDB error: No schema op");
- return DBA_NDB_ERROR;
- }
- if(schemaOp->createTable( TableName,
- 8, // Data Size
- TupleKey,
- 2, // Index size
- All,
- 6,
- 78,
- 80,
- 1,
- false) == -1){
- NdbSchemaCon::closeSchemaTrans(schemaCon);
- DBA__SetLatestError(DBA_NDB_ERROR, 0,
- "Internal NDB error: Create table failed");
- return DBA_NDB_ERROR;
- }
- for (int i = 0; i < NbColumns; i++){
- int attrSize;
- int arraySize;
- AttrType attrType;
- if(!getNdbAttr(Columns[i].DataType, Columns[i].Size,
- &attrSize,
- &arraySize,
- &attrType)){
- NdbSchemaCon::closeSchemaTrans(schemaCon);
- DBA__SetLatestError(DBA_APPLICATION_ERROR, 0,
- "Invalid datatype/size combination");
- return DBA_APPLICATION_ERROR;
- }
- if(schemaOp->createAttribute( Columns[i].Name,
- Columns[i].IsKey ? TupleKey : NoKey,
- attrSize,
- arraySize,
- attrType) == -1){
- NdbSchemaCon::closeSchemaTrans(schemaCon);
- DBA__SetLatestError(DBA_NDB_ERROR, 0,
- "Internal NDB error: Create attribute failed");
- return DBA_NDB_ERROR;
- }
- }
- if(schemaCon->execute() == -1){
- NdbSchemaCon::closeSchemaTrans(schemaCon);
- DBA__SetLatestError(DBA_NDB_ERROR, 0,
- "Internal NDB error: Execute schema failed");
- return DBA_NDB_ERROR;
- }
- NdbSchemaCon::closeSchemaTrans(schemaCon);
- return DBA_NO_ERROR;
- }
- DBA_Error_t
- DBA_DropTable( char* TableName ){
- return DBA_NOT_IMPLEMENTED;
- }
- Boolean_t
- DBA_TableExists( const char* TableName ){
- NdbDictionary::Dictionary * dict = DBA__TheNdb->getDictionary();
- if(dict == 0){
- return 0;
- }
- const NdbDictionary::Table * tab = dict->getTable(TableName);
- if(tab == 0){
- return 0;
- }
- return 1;
- }
- static
- bool
- getNdbAttr(DBA_DataTypes_t type,
- Size_t size,
- int * attrSize,
- int * arraySize,
- AttrType * attrType) {
- if(type == DBA_CHAR){
- * attrType = String;
- * attrSize = 8;
- * arraySize = size;
- return true;
- }
- * attrType = Signed;
- if((size % 4) == 0){
- * attrSize = 32;
- * arraySize = size / 4;
- return true;
- }
- * attrSize = 8;
- * arraySize = size;
- return true;
- }