DbHelper增加了两个Build方法分别构建IDbCommand与IDataParameter,同时增加了接受IDbCommand的接 口,这样做是为了在需要重复执行某个Command时不需要每次都重新构建Command浪费效率,现在可以用Build方法先构建出Command对 象,然后在循环中执行这个command,如下示例。
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IDbHelper helper = new SqliteHelper(this.connection);
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IDbCommand insertCommand = helper.BuildCommand(
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"INSERT INTO Test VALUES(NULL, @num, @r_date, @data)",
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1, DateTime.Now, new byte[0]);
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SQLiteConnection con = new SQLiteConnection();
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con.ConnectionString = this.connection.ConnectionString;
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con.Open();
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IDbTransaction transaction = con.BeginTransaction(
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IsolationLevel.ReadUncommitted);
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insertCommand.Transaction = transaction;
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关于DbHelper,请参看:
http://cavingdeep.cnblogs.com/category/37490.html
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