public string GetUpdateQuery(QueryInformation predicateQueryInfo, QueryInformation modificationQueryInfo)
{
var msql = modificationQueryInfo.WhereSql.Replace("WHERE ", "");
var indexOfAnd = msql.IndexOf("AND", StringComparison.Ordinal);
var update = indexOfAnd == -1 ? msql : msql.Substring(0, indexOfAnd).Trim();
var match = UpdateRegex.Match(update);
string updateSql;
if (match.Success)
{
var col = match.Groups[1];
var rest = match.Groups[2].Value;
rest = SqlStringHelper.FixParantheses(rest);
updateSql = col.Value + " = " + rest;
}
else
{
updateSql = string.Join(" = ", update.Split(new[] { " = " }, StringSplitOptions.RemoveEmptyEntries).Reverse());
}
return
($"UPDATE [{predicateQueryInfo.Schema}].[{predicateQueryInfo.Table}] SET {updateSql} {predicateQueryInfo.WhereSql}");
}
public string GetUpdateQuery(QueryInformation predicateQueryInfo, QueryInformation modificationQueryInfo)
{
var msql = modificationQueryInfo.WhereSql.Replace("WHERE ", "");
var indexOfAnd = msql.IndexOf("AND");
var update = indexOfAnd == -1 ? msql : msql.Substring(0, indexOfAnd).Trim();
var updateRegex = new Regex(@"(\[[^\]]+\])[^=]+=(.+)", RegexOptions.IgnoreCase);
var match = updateRegex.Match(update);
string updateSql;
if (match.Success)
{
var col = match.Groups[1];
var rest = match.Groups[2].Value;
rest = SqlStringHelper.FixParantheses(rest);
updateSql = col.Value + " = " + rest;
}
else
{
updateSql = string.Join(" = ", update.Split(new string[] { " = " }, StringSplitOptions.RemoveEmptyEntries).Reverse());
}
return(string.Format("UPDATE [{0}].[{1}] SET {2} {3}", predicateQueryInfo.Schema, predicateQueryInfo.Table, updateSql, predicateQueryInfo.WhereSql));
}
public QueryInformation GetQueryInformation<T>(System.Data.Entity.Core.Objects.ObjectQuery<T> query)
{
var fromRegex = new Regex(@"FROM \[([^\]]+)\]\.\[([^\]]+)\] AS (\[[^\]]+\])", RegexOptions.IgnoreCase);
var queryInfo = new QueryInformation();
var str = query.ToTraceString();
var match = fromRegex.Match(str);
queryInfo.Schema = match.Groups[1].Value;
queryInfo.Table = match.Groups[2].Value;
queryInfo.Alias = match.Groups[3].Value;
var i = str.IndexOf("WHERE");
if (i > 0)
{
var whereClause = str.Substring(i);
queryInfo.WhereSql = whereClause.Replace(queryInfo.Alias + ".", "");
}
return queryInfo;
}
public QueryInformation GetQueryInformation <T>(System.Data.Entity.Core.Objects.ObjectQuery <T> query)
{
var queryInfo = new QueryInformation();
var str = query.ToTraceString();
var match = FromRegex.Match(str);
queryInfo.Schema = match.Groups[1].Value;
queryInfo.Table = match.Groups[2].Value;
queryInfo.Alias = match.Groups[3].Value;
var i = str.IndexOf("WHERE", StringComparison.Ordinal);
if (i > 0)
{
var whereClause = str.Substring(i);
queryInfo.WhereSql = whereClause.Replace(queryInfo.Alias + ".", "");
}
return(queryInfo);
}
public string GetDeleteQuery(QueryInformation queryInfo)
{
return(string.Format("DELETE FROM [{0}].[{1}] {2}", queryInfo.Schema, queryInfo.Table, queryInfo.WhereSql));
}
public string GetDeleteQuery(QueryInformation queryInfo)
{
return($"DELETE {queryInfo.TopExpression} FROM [{queryInfo.Schema}].[{queryInfo.Table}] {queryInfo.WhereSql}");
}
public string GetTruncateQuery(QueryInformation queryInfo)
{
return(string.Format("TRUNCATE TABLE [{0}].[{1}]", queryInfo.Schema, queryInfo.Table));
}
