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Overview
| Comment: | added new schemas IndexColumns, ViewColumns, ForeignKeys |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | sourceforge |
| Files: | files | file ages | folders |
| SHA1: |
91fab4183e69e00fff797ca4bbe8ffc9 |
| User & Date: | rmsimpson 2005-08-23 22:11:56 |
Context
|
2005-08-24
| ||
| 15:05 | 3.2.4 code merge check-in: a8ce345c58 user: rmsimpson tags: sourceforge | |
|
2005-08-23
| ||
| 22:11 | added new schemas IndexColumns, ViewColumns, ForeignKeys check-in: 91fab4183e user: rmsimpson tags: sourceforge | |
|
2005-08-22
| ||
| 18:22 | 3.2.3 code merge check-in: 79fe5ae73a user: rmsimpson tags: sourceforge | |
Changes
Changes to System.Data.SQLite/SQLiteConnection.cs.
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// return Schema_ReservedWords();
case "DATATYPES":
return Schema_DataTypes();
case "COLUMNS":
return Schema_Columns(parms[0], parms[2], parms[3]);
case "INDEXES":
return Schema_Indexes(parms[0], parms[2], parms[4]);
case "TABLES":
return Schema_Tables(parms[0], parms[2], parms[3]);
case "VIEWS":
return Schema_Views(parms[0], parms[2]);
case "CATALOGS":
return Schema_Catalogs(parms[0]);
}
throw new NotSupportedException();
}
/// <summary>
................................................................................
row = tbl.NewRow();
row.ItemArray = new object[] { "Columns", 4, 4 };
tbl.Rows.Add(row);
row = tbl.NewRow();
row.ItemArray = new object[] { "Indexes", 5, 4 };
tbl.Rows.Add(row);
row = tbl.NewRow();
row.ItemArray = new object[] { "Tables", 4, 3 };
tbl.Rows.Add(row);
row = tbl.NewRow();
row.ItemArray = new object[] { "Views", 3, 3 };
tbl.Rows.Add(row);
tbl.AcceptChanges();
tbl.EndLoadData();
return tbl;
}
................................................................................
tbl.Columns.Add("DOMAIN_NAME", typeof(string));
tbl.Columns.Add("DESCRIPTION", typeof(string));
tbl.BeginLoadData();
if (String.IsNullOrEmpty(strCatalog)) strCatalog = "main";
using (SQLiteCommand cmd = new SQLiteCommand(String.Format(CultureInfo.CurrentCulture, "SELECT * FROM [{0}].[{1}]", strCatalog, strTable), this))
{
using (SQLiteDataReader rd = (SQLiteDataReader)cmd.ExecuteReader(CommandBehavior.SchemaOnly))
{
using (DataTable tblSchema = rd.GetSchemaTable())
{
foreach (DataRow schemaRow in tblSchema.Rows)
{
if (String.Compare(schemaRow[SchemaTableColumn.ColumnName].ToString(), strColumn, true, CultureInfo.CurrentCulture) == 0
|| strColumn == null)
{
row = tbl.NewRow();
row["TABLE_NAME"] = strTable;
row["COLUMN_NAME"] = schemaRow[SchemaTableColumn.ColumnName];
row["TABLE_CATALOG"] = strCatalog;
row["ORDINAL_POSITION"] = schemaRow[SchemaTableColumn.ColumnOrdinal];
row["COLUMN_HASDEFAULT"] = (schemaRow[SchemaTableOptionalColumn.DefaultValue] != DBNull.Value);
row["COLUMN_DEFAULT"] = schemaRow[SchemaTableOptionalColumn.DefaultValue];
row["IS_NULLABLE"] = schemaRow[SchemaTableColumn.AllowDBNull];
row["DATA_TYPE"] = SQLiteConvert.DbTypeToType((DbType)schemaRow[SchemaTableColumn.ProviderType]).ToString();
row["CHARACTER_MAXIMUM_LENGTH"] = schemaRow[SchemaTableColumn.ColumnSize];
row["TABLE_SCHEMA"] = schemaRow[SchemaTableColumn.BaseSchemaName];
tbl.Rows.Add(row);
}
}
}
}
}
tbl.AcceptChanges();
................................................................................
tbl.Columns.Add("TYPE", typeof(int));
tbl.Columns.Add("FILL_FACTOR", typeof(int));
tbl.Columns.Add("INITIAL_SIZE", typeof(int));
tbl.Columns.Add("NULLS", typeof(int));
tbl.Columns.Add("SORT_BOOKMARKS", typeof(bool));
tbl.Columns.Add("AUTO_UPDATE", typeof(bool));
tbl.Columns.Add("NULL_COLLATION", typeof(int));
tbl.Columns.Add("ORDINAL_POSITION", typeof(long));
tbl.Columns.Add("COLUMN_NAME", typeof(string));
tbl.Columns.Add("COLUMN_GUID", typeof(Guid));
tbl.Columns.Add("COLUMN_PROPID", typeof(long));
tbl.Columns.Add("COLLATION", typeof(short));
tbl.Columns.Add("CARDINALITY", typeof(Decimal));
tbl.Columns.Add("PAGES", typeof(int));
tbl.Columns.Add("FILTER_CONDITION", typeof(string));
................................................................................
IO.StringReader stringReader = new System.IO.StringReader(dataTypesXml);
tbl.ReadXml(stringReader);
stringReader.Close();
tbl.AcceptChanges();
tbl.EndLoadData();
return tbl;
}
}
}
|
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// return Schema_ReservedWords();
case "DATATYPES":
return Schema_DataTypes();
case "COLUMNS":
return Schema_Columns(parms[0], parms[2], parms[3]);
case "INDEXES":
return Schema_Indexes(parms[0], parms[2], parms[4]);
case "INDEXCOLUMNS":
return Schema_IndexColumns(parms[0], parms[2], parms[3], parms[4]);
case "TABLES":
return Schema_Tables(parms[0], parms[2], parms[3]);
case "VIEWS":
return Schema_Views(parms[0], parms[2]);
case "VIEWCOLUMNS":
return Schema_ViewColumns(parms[0], parms[2], parms[3]);
case "FOREIGNKEYS":
return Schema_ForeignKeys(parms[0], parms[2], parms[3]);
case "CATALOGS":
return Schema_Catalogs(parms[0]);
}
throw new NotSupportedException();
}
/// <summary>
................................................................................
row = tbl.NewRow();
row.ItemArray = new object[] { "Columns", 4, 4 };
tbl.Rows.Add(row);
row = tbl.NewRow();
row.ItemArray = new object[] { "Indexes", 5, 4 };
tbl.Rows.Add(row);
row = tbl.NewRow();
row.ItemArray = new object[] { "IndexColumns", 5, 4 };
tbl.Rows.Add(row);
row = tbl.NewRow();
row.ItemArray = new object[] { "Tables", 4, 3 };
tbl.Rows.Add(row);
row = tbl.NewRow();
row.ItemArray = new object[] { "Views", 3, 3 };
tbl.Rows.Add(row);
row = tbl.NewRow();
row.ItemArray = new object[] { "ViewColumns", 4, 4 };
tbl.Rows.Add(row);
row = tbl.NewRow();
row.ItemArray = new object[] { "ForeignKeys", 4, 3 };
tbl.Rows.Add(row);
tbl.AcceptChanges();
tbl.EndLoadData();
return tbl;
}
................................................................................
tbl.Columns.Add("DOMAIN_NAME", typeof(string));
tbl.Columns.Add("DESCRIPTION", typeof(string));
tbl.BeginLoadData();
if (String.IsNullOrEmpty(strCatalog)) strCatalog = "main";
using (SQLiteCommand cmdTables = new SQLiteCommand(String.Format(CultureInfo.CurrentCulture, "SELECT * FROM [{0}].[sqlite_master] WHERE [type] LIKE 'table'", strCatalog), this))
{
using (SQLiteDataReader rdTables = cmdTables.ExecuteReader())
{
while (rdTables.Read())
{
if (String.IsNullOrEmpty(strTable) || String.Compare(strTable, rdTables.GetString(2), true, CultureInfo.CurrentCulture) == 0)
{
using (SQLiteCommand cmd = new SQLiteCommand(String.Format(CultureInfo.CurrentCulture, "SELECT * FROM [{0}].[{1}]", strCatalog, rdTables.GetString(2)), this))
{
using (SQLiteDataReader rd = (SQLiteDataReader)cmd.ExecuteReader(CommandBehavior.SchemaOnly))
{
using (DataTable tblSchema = rd.GetSchemaTable())
{
foreach (DataRow schemaRow in tblSchema.Rows)
{
if (String.Compare(schemaRow[SchemaTableColumn.ColumnName].ToString(), strColumn, true, CultureInfo.CurrentCulture) == 0
|| strColumn == null)
{
row = tbl.NewRow();
row["TABLE_NAME"] = rdTables.GetString(2);
row["COLUMN_NAME"] = schemaRow[SchemaTableColumn.ColumnName];
row["TABLE_CATALOG"] = strCatalog;
row["ORDINAL_POSITION"] = schemaRow[SchemaTableColumn.ColumnOrdinal];
row["COLUMN_HASDEFAULT"] = (schemaRow[SchemaTableOptionalColumn.DefaultValue] != DBNull.Value);
row["COLUMN_DEFAULT"] = schemaRow[SchemaTableOptionalColumn.DefaultValue];
row["IS_NULLABLE"] = schemaRow[SchemaTableColumn.AllowDBNull];
row["DATA_TYPE"] = SQLiteConvert.DbTypeToType((DbType)schemaRow[SchemaTableColumn.ProviderType]).ToString();
row["CHARACTER_MAXIMUM_LENGTH"] = schemaRow[SchemaTableColumn.ColumnSize];
row["TABLE_SCHEMA"] = schemaRow[SchemaTableColumn.BaseSchemaName];
tbl.Rows.Add(row);
}
}
}
}
}
}
}
}
}
tbl.AcceptChanges();
................................................................................
tbl.Columns.Add("TYPE", typeof(int));
tbl.Columns.Add("FILL_FACTOR", typeof(int));
tbl.Columns.Add("INITIAL_SIZE", typeof(int));
tbl.Columns.Add("NULLS", typeof(int));
tbl.Columns.Add("SORT_BOOKMARKS", typeof(bool));
tbl.Columns.Add("AUTO_UPDATE", typeof(bool));
tbl.Columns.Add("NULL_COLLATION", typeof(int));
tbl.Columns.Add("ORDINAL_POSITION", typeof(int));
tbl.Columns.Add("COLUMN_NAME", typeof(string));
tbl.Columns.Add("COLUMN_GUID", typeof(Guid));
tbl.Columns.Add("COLUMN_PROPID", typeof(long));
tbl.Columns.Add("COLLATION", typeof(short));
tbl.Columns.Add("CARDINALITY", typeof(Decimal));
tbl.Columns.Add("PAGES", typeof(int));
tbl.Columns.Add("FILTER_CONDITION", typeof(string));
................................................................................
IO.StringReader stringReader = new System.IO.StringReader(dataTypesXml);
tbl.ReadXml(stringReader);
stringReader.Close();
tbl.AcceptChanges();
tbl.EndLoadData();
return tbl;
}
/// <summary>
/// Returns the base column information for indexes in a database
/// </summary>
/// <param name="strCatalog">The catalog to retrieve indexes for (can be null)</param>
/// <param name="strTable">The table to restrict index information by (can be null)</param>
/// <param name="strIndex">The index to restrict index information by (can be null)</param>
/// <param name="strColumn">The source column to restrict index information by (can be null)</param>
/// <returns>A DataTable containing the results</returns>
private DataTable Schema_IndexColumns(string strCatalog, string strTable, string strIndex, string strColumn)
{
DataTable tbl = new DataTable("IndexColumns");
DataRow row;
tbl.Locale = CultureInfo.InvariantCulture;
tbl.Columns.Add("CONSTRAINT_CATALOG", typeof(string));
tbl.Columns.Add("CONSTRAINT_SCHEMA", typeof(string));
tbl.Columns.Add("CONSTRAINT_NAME", typeof(string));
tbl.Columns.Add("TABLE_CATALOG", typeof(string));
tbl.Columns.Add("TABLE_SCHEMA", typeof(string));
tbl.Columns.Add("TABLE_NAME", typeof(string));
tbl.Columns.Add("COLUMN_NAME", typeof(string));
tbl.Columns.Add("ORDINAL_POSITION", typeof(int));
tbl.Columns.Add("INDEX_NAME", typeof(string));
if (String.IsNullOrEmpty(strCatalog)) strCatalog = "main";
tbl.BeginLoadData();
using (SQLiteCommand cmdTable = new SQLiteCommand(String.Format(CultureInfo.CurrentCulture, "SELECT * FROM [{0}].[sqlite_master] WHERE [type] LIKE 'index'", strCatalog), this))
{
using (SQLiteDataReader rdTable = cmdTable.ExecuteReader())
{
while (rdTable.Read())
{
if (String.IsNullOrEmpty(strTable) || String.Compare(strTable, rdTable.GetString(2), true, CultureInfo.CurrentCulture) == 0)
{
if (String.IsNullOrEmpty(strIndex) || String.Compare(strIndex, rdTable.GetString(1), true, CultureInfo.CurrentCulture) == 0)
{
using (SQLiteCommand cmdIndex = new SQLiteCommand(String.Format(CultureInfo.CurrentCulture, "PRAGMA [{0}].index_info([{1}])", strCatalog, rdTable.GetString(1)), this))
{
using (SQLiteDataReader rdIndex = cmdIndex.ExecuteReader())
{
while (rdIndex.Read())
{
row = tbl.NewRow();
row["CONSTRAINT_CATALOG"] = strCatalog;
row["CONSTRAINT_NAME"] = rdTable.GetString(1);
row["TABLE_CATALOG"] = strCatalog;
row["TABLE_NAME"] = rdTable.GetString(2);
row["COLUMN_NAME"] = rdIndex.GetString(2);
row["INDEX_NAME"] = rdTable.GetString(1);
row["ORDINAL_POSITION"] = rdIndex.GetInt32(1);
tbl.Rows.Add(row);
}
}
}
}
}
}
}
}
tbl.EndLoadData();
tbl.AcceptChanges();
return tbl;
}
/// <summary>
/// Returns detailed column information for a specified view
/// </summary>
/// <param name="strCatalog">The catalog to retrieve columns for (can be null)</param>
/// <param name="strView">The view to restrict column information by (can be null)</param>
/// <param name="strColumn">The source column to restrict column information by (can be null)</param>
/// <returns>A DataTable containing the results</returns>
private DataTable Schema_ViewColumns(string strCatalog, string strView, string strColumn)
{
DataTable tbl = new DataTable("ViewColumns");
DataRow row;
string strSql;
int n;
DataRow schemaRow;
DataRow viewRow;
tbl.Locale = CultureInfo.InvariantCulture;
tbl.Columns.Add("VIEW_CATALOG", typeof(string));
tbl.Columns.Add("VIEW_SCHEMA", typeof(string));
tbl.Columns.Add("VIEW_NAME", typeof(string));
tbl.Columns.Add("VIEW_COLUMN_NAME", typeof(String));
tbl.Columns.Add("TABLE_CATALOG", typeof(string));
tbl.Columns.Add("TABLE_SCHEMA", typeof(string));
tbl.Columns.Add("TABLE_NAME", typeof(string));
tbl.Columns.Add("COLUMN_NAME", typeof(string));
if (String.IsNullOrEmpty(strCatalog)) strCatalog = "main";
tbl.BeginLoadData();
using (SQLiteCommand cmdViews = new SQLiteCommand(String.Format(CultureInfo.CurrentCulture, "SELECT * FROM [{0}].[sqlite_master] WHERE [type] LIKE 'view'", strCatalog), this))
{
using (SQLiteDataReader rdViews = cmdViews.ExecuteReader())
{
while (rdViews.Read())
{
if (String.IsNullOrEmpty(strView) || String.Compare(strView, rdViews.GetString(2), true, CultureInfo.CurrentCulture) == 0)
{
using (SQLiteCommand cmdViewSelect = new SQLiteCommand(String.Format(CultureInfo.CurrentCulture, "SELECT * FROM [{0}].[{1}]", strCatalog, rdViews.GetString(2)), this))
{
strSql = rdViews.GetString(4);
n = CultureInfo.CurrentCulture.CompareInfo.IndexOf(strSql, " AS ", CompareOptions.IgnoreCase);
if (n < 0)
continue;
strSql = strSql.Substring(n + 4);
using (SQLiteCommand cmd = new SQLiteCommand(strSql, this))
{
using (SQLiteDataReader rdViewSelect = cmdViewSelect.ExecuteReader(CommandBehavior.SchemaOnly))
{
using (SQLiteDataReader rd = (SQLiteDataReader)cmd.ExecuteReader(CommandBehavior.SchemaOnly))
{
using (DataTable tblSchemaView = rdViewSelect.GetSchemaTable())
{
using (DataTable tblSchema = rd.GetSchemaTable())
{
for (n = 0; n < tblSchema.Rows.Count; n++)
{
viewRow = tblSchemaView.Rows[n];
schemaRow = tblSchema.Rows[n];
if (String.Compare(viewRow[SchemaTableColumn.ColumnName].ToString(), strColumn, true, CultureInfo.CurrentCulture) == 0
|| strColumn == null)
{
row = tbl.NewRow();
row["VIEW_CATALOG"] = strCatalog;
row["VIEW_NAME"] = rdViews.GetString(2);
row["TABLE_CATALOG"] = strCatalog;
row["TABLE_SCHEMA"] = schemaRow[SchemaTableColumn.BaseSchemaName];
row["TABLE_NAME"] = schemaRow[SchemaTableColumn.BaseTableName];
row["COLUMN_NAME"] = schemaRow[SchemaTableColumn.ColumnName];
row["VIEW_COLUMN_NAME"] = viewRow[SchemaTableColumn.ColumnName];
tbl.Rows.Add(row);
}
}
}
}
}
}
}
}
}
}
}
}
tbl.EndLoadData();
tbl.AcceptChanges();
return tbl;
}
/// <summary>
/// Retrieves foreign key information from the specified set of filters
/// </summary>
/// <param name="strCatalog">An optional catalog to restrict results on</param>
/// <param name="strTable">An optional table to restrict results on</param>
/// <param name="strKeyName">An optional foreign key name to restrict results on</param>
/// <returns>A DataTable with the results of the query</returns>
private DataTable Schema_ForeignKeys(string strCatalog, string strTable, string strKeyName)
{
DataTable tbl = new DataTable("ForeignKeys");
DataRow row;
tbl.Locale = CultureInfo.InvariantCulture;
tbl.Columns.Add("CONSTRAINT_CATALOG", typeof(string));
tbl.Columns.Add("CONSTRAINT_SCHEMA", typeof(string));
tbl.Columns.Add("CONSTRAINT_NAME", typeof(string));
tbl.Columns.Add("TABLE_CATALOG", typeof(string));
tbl.Columns.Add("TABLE_SCHEMA", typeof(string));
tbl.Columns.Add("TABLE_NAME", typeof(string));
tbl.Columns.Add("CONSTRAINT_TYPE", typeof(string));
tbl.Columns.Add("IS_DEFERRABLE", typeof(bool));
tbl.Columns.Add("INITIALLY_DEFERRED", typeof(bool));
tbl.Columns.Add("FKEY_FROM_COLUMN", typeof(string));
tbl.Columns.Add("FKEY_TO_CATALOG", typeof(string));
tbl.Columns.Add("FKEY_TO_SCHEMA", typeof(string));
tbl.Columns.Add("FKEY_TO_TABLE", typeof(string));
tbl.Columns.Add("FKEY_TO_COLUMN", typeof(string));
if (String.IsNullOrEmpty(strCatalog)) strCatalog = "main";
tbl.BeginLoadData();
using (SQLiteCommand cmdTables = new SQLiteCommand(String.Format(CultureInfo.CurrentCulture, "SELECT * FROM [{0}].[sqlite_master] WHERE [type] LIKE 'table'", strCatalog), this))
{
using (SQLiteDataReader rdTables = cmdTables.ExecuteReader())
{
while (rdTables.Read())
{
if (String.IsNullOrEmpty(strTable) || String.Compare(strTable, rdTables.GetString(2), true, CultureInfo.CurrentCulture) == 0)
{
using (SQLiteCommand cmdKey = new SQLiteCommand(String.Format(CultureInfo.CurrentCulture, "PRAGMA [{0}].foreign_key_list([{1}])", strCatalog, rdTables.GetString(2)), this))
{
using (SQLiteDataReader rdKey = cmdKey.ExecuteReader())
{
while (rdKey.Read())
{
row = tbl.NewRow();
row["CONSTRAINT_CATALOG"] = strCatalog;
row["CONSTRAINT_NAME"] = String.Format(CultureInfo.CurrentCulture, "unnamed{0}", rdKey.GetInt64(0));
row["TABLE_CATALOG"] = strCatalog;
row["TABLE_NAME"] = rdTables.GetString(2);
row["CONSTRAINT_TYPE"] = "FOREIGN KEY";
row["IS_DEFERRABLE"] = false;
row["INITIALLY_DEFERRED"] = false;
row["FKEY_TO_CATALOG"] = strCatalog;
row["FKEY_TO_TABLE"] = rdKey.GetString(2);
row["FKEY_FROM_COLUMN"] = rdKey.GetString(3);
row["FKEY_TO_COLUMN"] = rdKey.GetString(4);
tbl.Rows.Add(row);
}
}
}
}
}
}
}
tbl.EndLoadData();
tbl.AcceptChanges();
return tbl;
}
}
}
|
Changes to System.Data.SQLite/SQLiteDataReader.cs.
469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 |
{
cnn._sql.SetRealColNames(true);
// Create a new command based on the original. The only difference being that this new command returns
// fully-qualified Database.Table.Column column names because of the above pragma
using (SQLiteCommand cmd = new SQLiteCommand(_activeStatement._sqlStatement, cnn))
{
using (DbDataReader rd = cmd.ExecuteReader())
{
// No need to Read() from this reader, we just want the column names
for (int n = 0; n < _fieldCount; n++)
{
strTable = "";
strCatalog = "main";
|
| |
469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 |
{
cnn._sql.SetRealColNames(true);
// Create a new command based on the original. The only difference being that this new command returns
// fully-qualified Database.Table.Column column names because of the above pragma
using (SQLiteCommand cmd = new SQLiteCommand(_activeStatement._sqlStatement, cnn))
{
using (DbDataReader rd = cmd.ExecuteReader(CommandBehavior.SchemaOnly))
{
// No need to Read() from this reader, we just want the column names
for (int n = 0; n < _fieldCount; n++)
{
strTable = "";
strCatalog = "main";
|