97 lines
4.0 KiB
C#
97 lines
4.0 KiB
C#
#if SQLCOMPACT
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Data;
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namespace Sdaleo.Systems.SQLCE
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{
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/// <summary>
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/// Specific actions for SQL CE Tables in a Database
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/// </summary>
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public class SQLCETable
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{
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/// <summary>
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/// Returns all the Table Names for the specified SQL CE Credential
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/// </summary>
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/// <param name="credential">SQL CE Credentials</param>
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/// <param name="Tables">array of table names, or null if error occured</param>
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/// <returns>DBError Object with ErrorOccured, if error Occured</returns>
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public static DBError Tables(IConnectDb credential, out string[] Tables)
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{
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Tables = null;
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DBError dbError = ValidationConsts.IsCredentialValid(credential, DBSystem.SQL_CE);
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if (dbError.ErrorOccured)
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return dbError;
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// Execute the Query
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string sql = "Select [TABLE_NAME] From INFORMATION_SCHEMA.TABLES Order By [TABLE_NAME]";
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DB db = DB.Create(credential);
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DBRetVal retVal = db.FillDataTable(sql);
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if (retVal.IsValid)
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{
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List<String> retList = new List<string>();
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foreach (DataRow row in retVal.GetDataTableRetVal().Rows)
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retList.Add(row["TABLE_NAME"].ToString());
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Tables = retList.ToArray();
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}
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return retVal;
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}
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/// <summary>
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/// Check to see if the Table Exists on the specified SQL CE Credentials
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/// </summary>
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/// <param name="credential">SQL CE Credentials</param>
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/// <param name="TableName">Specify the TableName to check for (required)</param>
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/// <param name="bExists">true if exists, false otherwise</param>
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/// <returns>DBError Object with ErrorOccured, if error Occured</returns>
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public static DBError TableExists(IConnectDb credential, string TableName, out bool bExists)
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{
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bExists = false;
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DBError dbError = ValidationConsts.IsCredentialValid(credential, DBSystem.SQL_CE);
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if (dbError.ErrorOccured)
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return dbError;
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dbError = Validation.IsValidTableName(TableName);
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if (dbError.ErrorOccured)
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return dbError;
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// Execute the Query
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string sql = String.Format("Select [TABLE_NAME] From INFORMATION_SCHEMA.TABLES Where [TABLE_NAME] = '{0}' Order By [TABLE_NAME]", TableName);
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DB db = DB.Create(credential);
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DBRetVal retVal = db.ExecuteScalar(sql);
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bExists = !retVal.IsValid;
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return retVal;
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}
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/// <summary>
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/// Changes the Table Name for the specified Table
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/// </summary>
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/// <param name="credential">SSQL CE Credentials</param>
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/// <param name="TableName">Name of Table (required)</param>
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/// <param name="TableNameNew">Name of Table New (required)</param>
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/// <returns>DBError Object with ErrorOccured, if error Occured</returns>
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public static DBError TableRename(IConnectDb credential, string TableName, string TableNameNew)
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{
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DBError dbError = ValidationConsts.IsCredentialValid(credential, DBSystem.SQL_CE);
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if (dbError.ErrorOccured)
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return dbError;
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dbError = Validation.IsValidTableName(TableName);
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if (dbError.ErrorOccured)
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return dbError;
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dbError = Validation.IsValidTableName(TableNameNew);
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if (dbError.ErrorOccured)
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return dbError;
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// Execute the Query
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string sql = String.Format("sp_rename @objname = '{0}', @newname = '{1}', @objtype = 'OBJECT'", TableName, TableNameNew);
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DB db = DB.Create(credential);
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DBRetVal retVal = db.ExecuteNonQuery(sql);
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return retVal;
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}
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}
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}
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#endif |