本文整理汇总了C#中System.Data.Odbc.OdbcConnection.SQLGetFunctions方法的典型用法代码示例。如果您正苦于以下问题：C# OdbcConnection.SQLGetFunctions方法的具体用法？C# OdbcConnection.SQLGetFunctions怎么用？C# OdbcConnection.SQLGetFunctions使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Data.Odbc.OdbcConnection的用法示例。
在下文中一共展示了OdbcConnection.SQLGetFunctions方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: OdbcMetaDataFactory
internal OdbcMetaDataFactory(Stream XMLStream, string serverVersion, string serverVersionNormalized, OdbcConnection connection) : base(XMLStream, serverVersion, serverVersionNormalized)
{
this._schemaMapping = new SchemaFunctionName[] { new SchemaFunctionName(DbMetaDataCollectionNames.DataTypes, ODBC32.SQL_API.SQLGETTYPEINFO), new SchemaFunctionName(OdbcMetaDataCollectionNames.Columns, ODBC32.SQL_API.SQLCOLUMNS), new SchemaFunctionName(OdbcMetaDataCollectionNames.Indexes, ODBC32.SQL_API.SQLSTATISTICS), new SchemaFunctionName(OdbcMetaDataCollectionNames.Procedures, ODBC32.SQL_API.SQLPROCEDURES), new SchemaFunctionName(OdbcMetaDataCollectionNames.ProcedureColumns, ODBC32.SQL_API.SQLPROCEDURECOLUMNS), new SchemaFunctionName(OdbcMetaDataCollectionNames.ProcedureParameters, ODBC32.SQL_API.SQLPROCEDURECOLUMNS), new SchemaFunctionName(OdbcMetaDataCollectionNames.Tables, ODBC32.SQL_API.SQLTABLES), new SchemaFunctionName(OdbcMetaDataCollectionNames.Views, ODBC32.SQL_API.SQLTABLES) };
if (base.CollectionDataSet.Tables[DbMetaDataCollectionNames.MetaDataCollections] == null)
{
throw ADP.UnableToBuildCollection(DbMetaDataCollectionNames.MetaDataCollections);
}
DataTable table2 = base.CloneAndFilterCollection(DbMetaDataCollectionNames.MetaDataCollections, null);
DataTable table = base.CollectionDataSet.Tables[DbMetaDataCollectionNames.Restrictions];
if (table != null)
{
table = base.CloneAndFilterCollection(DbMetaDataCollectionNames.Restrictions, null);
}
DataColumn column3 = table2.Columns["PopulationMechanism"];
DataColumn column2 = table2.Columns["CollectionName"];
DataColumn column = null;
if (table != null)
{
column = table.Columns["CollectionName"];
}
foreach (DataRow row in table2.Rows)
{
if (!(((string) row[column3]) == "PrepareCollection"))
{
continue;
}
int index = -1;
for (int i = 0; i < this._schemaMapping.Length; i++)
{
if (this._schemaMapping[i]._schemaName == ((string) row[column2]))
{
index = i;
break;
}
}
if ((index != -1) && !connection.SQLGetFunctions(this._schemaMapping[index]._odbcFunction))
{
if (table != null)
{
foreach (DataRow row2 in table.Rows)
{
if (((string) row[column2]) == ((string) row2[column]))
{
row2.Delete();
}
}
table.AcceptChanges();
}
row.Delete();
}
}
table2.AcceptChanges();
base.CollectionDataSet.Tables.Remove(base.CollectionDataSet.Tables[DbMetaDataCollectionNames.MetaDataCollections]);
base.CollectionDataSet.Tables.Add(table2);
if (table != null)
{
base.CollectionDataSet.Tables.Remove(base.CollectionDataSet.Tables[DbMetaDataCollectionNames.Restrictions]);
base.CollectionDataSet.Tables.Add(table);
}
}示例2: OdbcMetaDataFactory
internal OdbcMetaDataFactory(Stream XMLStream,
string serverVersion,
string serverVersionNormalized,
OdbcConnection connection):
base(XMLStream, serverVersion, serverVersionNormalized) {
// set up the colletion name ODBC function mapping guid mapping
_schemaMapping = new SchemaFunctionName[] {
new SchemaFunctionName(DbMetaDataCollectionNames.DataTypes,ODBC32.SQL_API.SQLGETTYPEINFO),
new SchemaFunctionName(OdbcMetaDataCollectionNames.Columns,ODBC32.SQL_API.SQLCOLUMNS),
new SchemaFunctionName(OdbcMetaDataCollectionNames.Indexes,ODBC32.SQL_API.SQLSTATISTICS),
new SchemaFunctionName(OdbcMetaDataCollectionNames.Procedures,ODBC32.SQL_API.SQLPROCEDURES),
new SchemaFunctionName(OdbcMetaDataCollectionNames.ProcedureColumns,ODBC32.SQL_API.SQLPROCEDURECOLUMNS),
new SchemaFunctionName(OdbcMetaDataCollectionNames.ProcedureParameters,ODBC32.SQL_API.SQLPROCEDURECOLUMNS),
new SchemaFunctionName(OdbcMetaDataCollectionNames.Tables,ODBC32.SQL_API.SQLTABLES),
new SchemaFunctionName(OdbcMetaDataCollectionNames.Views,ODBC32.SQL_API.SQLTABLES)};
// verify the existance of the table in the data set
DataTable metaDataCollectionsTable = CollectionDataSet.Tables[DbMetaDataCollectionNames.MetaDataCollections];
if (metaDataCollectionsTable == null){
throw ADP.UnableToBuildCollection(DbMetaDataCollectionNames.MetaDataCollections);
}
// copy the table filtering out any rows that don't apply to the current version of the provider
metaDataCollectionsTable = CloneAndFilterCollection(DbMetaDataCollectionNames.MetaDataCollections, null);
// verify the existance of the table in the data set
DataTable restrictionsTable = CollectionDataSet.Tables[DbMetaDataCollectionNames.Restrictions];
if (restrictionsTable != null){
// copy the table filtering out any rows that don't apply to the current version of the provider
restrictionsTable= CloneAndFilterCollection(DbMetaDataCollectionNames.Restrictions, null);
}
// need to filter out any of the collections where
// 1) it is populated using prepare collection
// 2) it is in the collection to odbc function mapping above
// 3) the provider does not support the necessary odbc function
DataColumn populationMechanism = metaDataCollectionsTable.Columns[_populationMechanism];
DataColumn collectionName = metaDataCollectionsTable.Columns[_collectionName];
DataColumn restrictionCollectionName = null;
if (restrictionsTable != null){
restrictionCollectionName = restrictionsTable.Columns[_collectionName];
}
foreach (DataRow collection in metaDataCollectionsTable.Rows){
if ((string)collection[populationMechanism] == _prepareCollection) {
// is the collection in the mapping
int mapping = -1;
for (int i = 0; i < _schemaMapping.Length; i++){
if (_schemaMapping[i]._schemaName == (string)collection[collectionName]){
mapping = i;
break;
}
}
// no go on to the next collection
if (mapping == -1) {
continue;
}
// does the provider support the necessary odbc function
// if not delete the row from the table
if (connection.SQLGetFunctions(_schemaMapping[mapping]._odbcFunction) == false){
// but first delete any related restrictions
if (restrictionsTable != null) {
foreach (DataRow restriction in restrictionsTable.Rows) {
if ((string)collection[collectionName]==(string)restriction[restrictionCollectionName]) {
restriction.Delete();
}
}
restrictionsTable.AcceptChanges();
}
collection.Delete();
}
}
}
// replace the original table with the updated one
metaDataCollectionsTable.AcceptChanges();
CollectionDataSet.Tables.Remove(CollectionDataSet.Tables[DbMetaDataCollectionNames.MetaDataCollections]);
CollectionDataSet.Tables.Add(metaDataCollectionsTable);
if (restrictionsTable != null) {
CollectionDataSet.Tables.Remove(CollectionDataSet.Tables[DbMetaDataCollectionNames.Restrictions]);
CollectionDataSet.Tables.Add(restrictionsTable);
}
}