using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"\s(?:from|join)\s*(\[?[\S]+)\]?(?:\s?)(?:(?:as)?\s?)(?!(join|where|from|left|right|outer|inner|on))(\w*)";
string input = @"
SELECT a.ACCTNO,
case [DCCDRID] when 'N/A' then 'N/A' else dbo.GETDocNames(DCCDRID) end AS [Specific Documents Needed],
a.CUSTRF,
b.[RLEXT#],
a.APPLCT,
a.SADDR1,
a.SADDR2,
a.SCITY,
a.SSTATE,
a.SZIP,
a.CFOReqstType
FROM (
SELECT a.ACCTNO,
a.CUSTRF,
a.MINNBR,
a.[GSE_NO] AS [FNMA#],
a.GSEPN AS [FNMA MBS Pool Number],
a.GSESN AS [FNMA Master Servicer Number],
a.APPLCT,
a.SADDR1,
a.SADDR2,
a.SCITY,
a.SSTATE,
a.SZIP,
a.RefreshRunDT AS [Request Date],
a.TRANDT AS [Paid Date],
a.OrgLnBal AS [Orig Loan Amt],
b.CustodianName,
a.FileDestName,
a.CSTSEQ,
a.CSTFileDest,
a.CSTRelCode,
a.CFOOrderReasonCode,
a.CFOReqstType,
a.DCCDRID
FROM [PRODLIB].[dbo].[DOCUS_SYS_REFRESH_CFO_DAILY] a
INNER JOIN tbl_DC_CLU_CUSTD b
ON a.CSTSEQ = b.CSTSEQ
WHERE a.CSTSEQ In (23,34,35,39,53,54)
) a
INNER JOIN DOCUS_PRODLIB_CLPREFAL b
ON a.ACCTNO = b.[RLNEW#]
WHERE a.CSTSEQ = 23";
RegexOptions options = RegexOptions.IgnoreCase;
foreach (Match m in Regex.Matches(input, pattern, options))
{
Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx