444 lines
16 KiB
C#
444 lines
16 KiB
C#
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using CYQ.Data.Extension;
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using CYQ.Data.Table;
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using System;
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using System.Text.RegularExpressions;
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using System.Collections.Generic;
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using System.Data;
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namespace CYQ.Data.SQL
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{
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/// <summary>
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/// Sql <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD> (<28><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֹ<EFBFBD><D6B9><EFBFBD>)
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/// </summary>
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internal class SqlFormat
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{
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/// <summary>
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/// Sql<71>ؼ<EFBFBD><D8BC>ִ<EFBFBD><D6B4><EFBFBD>
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/// </summary>
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public static string Keyword(string name, DalType dalType)
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{
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if (!string.IsNullOrEmpty(name))
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{
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name = name.Trim();
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if (name.IndexOfAny(new char[] { ' ', '[', ']', '`', '"', '(', ')' }) == -1)
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{
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string pre = null;
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int i = name.LastIndexOf('.');// <20><><EFBFBD>ӿ<EFBFBD><D3BF><EFBFBD>֧<EFBFBD>֣<EFBFBD>demo.dbo.users<72><73>
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if (i > 0)
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{
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string[] items = name.Split('.');
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pre = items[0];
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name = items[items.Length - 1];
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}
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switch (dalType)
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{
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case DalType.Access:
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return "[" + name + "]";
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case DalType.MsSql:
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case DalType.Sybase:
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return (pre == null ? "" : pre + "..") + "[" + name + "]";
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case DalType.MySql:
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return (pre == null ? "" : pre + ".") + "`" + name + "`";
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case DalType.SQLite:
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case DalType.PostgreSQL:
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return "\"" + name + "\"";
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case DalType.Txt:
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case DalType.Xml:
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return NotKeyword(name);
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}
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}
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}
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return name;
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}
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/// <summary>
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/// ȥ<><C8A5><EFBFBD>ؼ<EFBFBD><D8BC>ַ<EFBFBD><D6B7><EFBFBD>
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/// </summary>
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/// <param name="name"></param>
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/// <returns></returns>
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public static string NotKeyword(string name)
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{
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name = name.Trim();
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if (name.IndexOfAny(new char[] { '(', ')' }) == -1 && name.Split(' ').Length == 1)
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{
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//string pre = string.Empty;
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int i = name.LastIndexOf('.');// <20><><EFBFBD>ӿ<EFBFBD><D3BF><EFBFBD>֧<EFBFBD>֣<EFBFBD>demo.dbo.users<72><73>
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if (i > 0)
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{
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// pre = name.Substring(0, i + 1);
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name = name.Substring(i + 1);
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}
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name = name.Trim('[', ']', '`', '"');
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}
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return name;
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}
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/// <summary>
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/// Sql<71><6C><EFBFBD>ݿ<EFBFBD><DDBF><EFBFBD><EFBFBD>ݺ<EFBFBD>Sqlע<6C>봦<EFBFBD><EBB4A6>
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/// </summary>
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public static string Compatible(object where, DalType dalType, bool isFilterInjection)
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{
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string text = GetIFieldSql(where);
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if (isFilterInjection)
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{
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text = SqlInjection.Filter(text, dalType);
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}
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text = SqlCompatible.Format(text, dalType);
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return RemoveWhereOneEqualsOne(text);
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}
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/// <summary>
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/// <20>Ƴ<EFBFBD>"where 1=1"
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/// </summary>
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internal static string RemoveWhereOneEqualsOne(string sql)
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{
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try
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{
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sql = sql.Trim();
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if (sql == "where 1=1")
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{
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return string.Empty;
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}
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if (sql.EndsWith(" and 1=1"))
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{
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return sql.Substring(0, sql.Length - 8);
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}
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int i = sql.IndexOf("where 1=1", StringComparison.OrdinalIgnoreCase);
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//do
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//{
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if (i > 0)
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{
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if (i == sql.Length - 9)//<2F><>where 1=1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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{
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sql = sql.Substring(0, sql.Length - 10);
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}
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else if (sql.Substring(i + 10, 8).ToLower() == "order by")
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{
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sql = sql.Remove(i, 10);//<2F><><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD>
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}
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// i = sql.IndexOf("where 1=1", StringComparison.OrdinalIgnoreCase);
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}
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//}
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//while (i > 0);
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}
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catch
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{
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}
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return sql;
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}
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/// <summary>
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/// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1=2<><32>SQL<51><4C><EFBFBD><EFBFBD>
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/// </summary>
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/// <param name="tableName"><3E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD></param>
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/// <returns></returns>
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internal static string BuildSqlWithWhereOneEqualsTow(string tableName)
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{
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tableName = tableName.Trim();
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if (tableName[0] == '(' && tableName.IndexOf(')') > -1)
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{
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int end = tableName.LastIndexOf(')');
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string sql = tableName.Substring(1, end - 1);//.Replace("\r\n", "\n").Replace('\n', ' '); <20><><EFBFBD><EFBFBD>ע<EFBFBD>͵Ļ<CDB5><C4BB>С<EFBFBD>
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string[] keys = new string[] { " where ", "\nwhere ", "\nwhere\r", "\nwhere\n" };
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foreach (string key in keys)
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{
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if (sql.IndexOf(key, StringComparison.OrdinalIgnoreCase) > -1)
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{
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return Regex.Replace(sql, key, " where 1=2 and ", RegexOptions.IgnoreCase);
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}
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}
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//<2F><><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD>group by
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keys = new string[] { " group by", "\ngroup by" };
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foreach (string key in keys)
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{
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if (sql.IndexOf(key, StringComparison.OrdinalIgnoreCase) > -1)
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{
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string newKey = key.Replace("group", "where 1=2 group");
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return Regex.Replace(sql, key, newKey, RegexOptions.IgnoreCase);
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}
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}
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return sql + " where 1=2";
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}
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return string.Format("select * from {0} where 1=2", tableName);
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}
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/// <summary>
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/// Mysql Bit <20><><EFBFBD>Ͳ<EFBFBD><CDB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>ֶ<EFBFBD>='0' <20><><EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD>
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/// </summary>
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/// <param name="where"></param>
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/// <param name="mdc"></param>
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/// <returns></returns>
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internal static string FormatMySqlBit(string where, MDataColumn mdc)
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{
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if (where.Contains("'0'"))
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{
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foreach (MCellStruct item in mdc)
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{
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int groupID = DataType.GetGroup(item.SqlType);
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if (groupID == 1 || groupID == 3)//<2F><>ͼģʽ<C4A3><CABD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>bit<69><74>bigint,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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{
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if (where.IndexOf(item.ColumnName, StringComparison.OrdinalIgnoreCase) > -1)
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{
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string pattern = @"\s?" + item.ColumnName + @"\s*=\s*'0'";
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where = Regex.Replace(where, pattern, " " + item.ColumnName + "=0", RegexOptions.IgnoreCase);
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}
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}
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}
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}
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return where;
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}
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internal static string FormatOracleDateTime(string where, MDataColumn mdc)
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{
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if (where.IndexOf(':') > -1 && where.IndexOfAny(new char[] { '>', '<', '-', '/' }) > -1)//<2F>ж<EFBFBD><D0B6>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><DAB5>ж<EFBFBD>
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{
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foreach (MCellStruct item in mdc)
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{
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if (DataType.GetGroup(item.SqlType) == 2 && where.IndexOf(item.ColumnName, StringComparison.OrdinalIgnoreCase) > -1)
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{
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string pattern = @"(\s?" + item.ColumnName + @"\s*[><]{1}[=]?\s*)('.{19,23}')";
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Regex reg = new Regex(pattern, RegexOptions.IgnoreCase);
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if (reg.IsMatch(where))
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{
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where = reg.Replace(where, delegate(Match match)
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{
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if (item.SqlType == SqlDbType.Timestamp)
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{
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return match.Groups[1].Value + "to_timestamp(" + match.Groups[2].Value + ",'yyyy-MM-dd HH24:MI:ss.ff')";
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}
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else
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{
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return match.Groups[1].Value + "to_date(" + match.Groups[2].Value + ",'yyyy-mm-dd hh24:mi:ss')";
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}
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});
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}
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}
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}
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}
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return where;
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}
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internal static List<string> GetTableNamesFromSql(string sql)
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{
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List<string> nameList = new List<string>();
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//<2F><>ȡԭʼ<D4AD><CABC><EFBFBD><EFBFBD>
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string[] items = sql.Split(new char[] { ' ', ';', '(', ')', ',' });
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if (items.Length == 1) { return nameList; }//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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if (items.Length > 3) // <20><><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD>ո<EFBFBD><D5B8><EFBFBD>select * from xxx
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{
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bool isKeywork = false;
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foreach (string item in items)
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{
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if (!string.IsNullOrEmpty(item))
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{
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string lowerItem = item.ToLower();
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switch (lowerItem)
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{
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case "from":
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case "update":
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case "into":
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case "join":
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case "table":
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isKeywork = true;
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break;
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default:
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if (isKeywork)
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{
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if (item[0] == '(' || item.IndexOf('.') > -1) { isKeywork = false; }
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else
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{
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isKeywork = false;
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nameList.Add(NotKeyword(item));
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}
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}
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break;
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}
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}
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}
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}
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return nameList;
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}
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#region IField<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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/// <summary>
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/// <20><>̬<EFBFBD>Ķ<EFBFBD>IField<6C>ӿڴ<D3BF><DAB4><EFBFBD>
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/// </summary>
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public static string GetIFieldSql(object whereObj)
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{
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if (whereObj is IField)
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{
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IField filed = whereObj as IField;
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string where = filed.Sql;
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filed.Sql = "";
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return where;
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}
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return Convert.ToString(whereObj);
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}
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#endregion
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/// <summary>
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/// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD>Ĭ<EFBFBD><C4AC>ֵ<EFBFBD><D6B5>ʽ<EFBFBD><CABD><EFBFBD>ɱ<EFBFBD>ֵ<D7BC><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<D7BC><D6B5>ԭ<EFBFBD>ɸ<EFBFBD><C9B8><EFBFBD><EFBFBD>ݿ<EFBFBD>Ĭ<EFBFBD><C4AC>ֵ
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/// </summary>
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/// <param name="flag">[0:ת<>ɱ<EFBFBD>ֵ],[1:ת<>ɸ<EFBFBD><C9B8><EFBFBD><EFBFBD>ݿ<EFBFBD>ֵ],[2:ת<>ɸ<EFBFBD><C9B8><EFBFBD><EFBFBD>ݿ<EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>ǰ<EFBFBD><C7B0>]</param>
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/// <param name="sqlDbType"><3E><><EFBFBD>е<EFBFBD>ֵ</param>
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/// <returns></returns>
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public static string FormatDefaultValue(DalType dalType, object value, int flag, SqlDbType sqlDbType)
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{
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string defaultValue = Convert.ToString(value).Trim().TrimEnd('\n');//oracle<6C><65><EFBFBD>Դ<EFBFBD>\n<><6E>β
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if (dalType != DalType.Access)
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{
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defaultValue = defaultValue.Replace("GenGUID()", string.Empty);
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}
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if (defaultValue.Length == 0)
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{
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return null;
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}
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int groupID = DataType.GetGroup(sqlDbType);
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if (flag == 0)
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{
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if (groupID == 2)//<2F><><EFBFBD>ڵı<DAB5>ֵ
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{
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return SqlValue.GetDate;
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}
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else if (groupID == 4)
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{
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return SqlValue.Guid;
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}
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switch (dalType)
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{
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case DalType.MySql://<2F><>ת\' \"<22><><EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD><D4B2><EFBFBD><EFBFBD>滻<EFBFBD><E6BBBB>
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|
|
defaultValue = defaultValue.Replace("\\\"", "\"").Replace("\\\'", "\'");
|
|||
|
|
break;
|
|||
|
|
case DalType.Access:
|
|||
|
|
case DalType.SQLite:
|
|||
|
|
defaultValue = defaultValue.Replace("\"\"", "<22><>");
|
|||
|
|
break;
|
|||
|
|
default:
|
|||
|
|
defaultValue = defaultValue.Replace("''", "<22><>");
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
switch (defaultValue.ToLower().Trim('(', ')'))
|
|||
|
|
{
|
|||
|
|
case "newid":
|
|||
|
|
case "guid":
|
|||
|
|
case "sys_guid":
|
|||
|
|
case "genguid":
|
|||
|
|
case "uuid":
|
|||
|
|
return SqlValue.Guid;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
if (defaultValue == SqlValue.Guid)
|
|||
|
|
{
|
|||
|
|
switch (dalType)
|
|||
|
|
{
|
|||
|
|
case DalType.MsSql:
|
|||
|
|
case DalType.Oracle:
|
|||
|
|
case DalType.Sybase:
|
|||
|
|
return SqlCompatible.FormatGUID(defaultValue, dalType);
|
|||
|
|
default:
|
|||
|
|
return "";
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
switch (dalType)
|
|||
|
|
{
|
|||
|
|
case DalType.Access:
|
|||
|
|
if (flag == 0)
|
|||
|
|
{
|
|||
|
|
if (defaultValue[0] == '"' && defaultValue[defaultValue.Length - 1] == '"')
|
|||
|
|
{
|
|||
|
|
defaultValue = defaultValue.Substring(1, defaultValue.Length - 2);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
defaultValue = defaultValue.Replace(SqlValue.GetDate, "Now()").Replace("\"", "\"\"");
|
|||
|
|
if (groupID == 0)
|
|||
|
|
{
|
|||
|
|
defaultValue = "\"" + defaultValue + "\"";
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
break;
|
|||
|
|
case DalType.MsSql:
|
|||
|
|
case DalType.Sybase:
|
|||
|
|
if (flag == 0)
|
|||
|
|
{
|
|||
|
|
if (defaultValue.StartsWith("(") && defaultValue.EndsWith(")"))//<2F><><EFBFBD><EFBFBD> (newid()) <20><>ȥ<EFBFBD><C8A5>()
|
|||
|
|
{
|
|||
|
|
defaultValue = defaultValue.Substring(1, defaultValue.Length - 2);
|
|||
|
|
}
|
|||
|
|
defaultValue = defaultValue.Trim('N', '\'');//'(', ')',
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
defaultValue = defaultValue.Replace(SqlValue.GetDate, "getdate()").Replace("'", "''");
|
|||
|
|
if (groupID == 0)
|
|||
|
|
{
|
|||
|
|
defaultValue = "(N'" + defaultValue + "')";
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
break;
|
|||
|
|
case DalType.Oracle:
|
|||
|
|
if (flag == 0)
|
|||
|
|
{
|
|||
|
|
defaultValue = defaultValue.Trim('\'');
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
defaultValue = defaultValue.Replace(SqlValue.GetDate, "sysdate").Replace("'", "''");
|
|||
|
|
if (groupID == 0)
|
|||
|
|
{
|
|||
|
|
defaultValue = "'" + defaultValue + "'";
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
break;
|
|||
|
|
case DalType.MySql:
|
|||
|
|
if (flag == 0)
|
|||
|
|
{
|
|||
|
|
defaultValue = defaultValue.Replace("b'0", "0").Replace("b'1", "1").Trim(' ', '\'');
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
defaultValue = defaultValue.Replace(SqlValue.GetDate, "CURRENT_TIMESTAMP").Replace("'", "\\'").Replace("\"", "\\\"");
|
|||
|
|
if (groupID == 0)
|
|||
|
|
{
|
|||
|
|
defaultValue = "\"" + defaultValue + "\"";
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
break;
|
|||
|
|
case DalType.SQLite:
|
|||
|
|
if (flag == 0)
|
|||
|
|
{
|
|||
|
|
defaultValue = defaultValue.Trim('"');
|
|||
|
|
if (groupID > 0)//<2F><><EFBFBD><EFBFBD>һЩ<D2BB><D0A9><EFBFBD>淶<EFBFBD><E6B7B6>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵ļ<CDB5><C4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> '0'
|
|||
|
|
{
|
|||
|
|
defaultValue = defaultValue.Trim('\'');
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
defaultValue = defaultValue.Replace(SqlValue.GetDate, "CURRENT_TIMESTAMP").Replace("\"", "\"\"");
|
|||
|
|
if (groupID == 0)
|
|||
|
|
{
|
|||
|
|
defaultValue = "\"" + defaultValue + "\"";
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
if (flag == 0)
|
|||
|
|
{
|
|||
|
|
return defaultValue.Replace("<22><>", "\"").Replace("<22><>", "'");
|
|||
|
|
}
|
|||
|
|
return defaultValue;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|