SQL Server : update table Convert Int To IP String -


i have problem example table1

name                     ip                         os        version ---------------------------------------------------------------------- jonh        0x20010db80a0b12f00000000000000001      os         8.184 bob         0x20010db80a0b12f00000000000000092      win        10.844 alice       0x20010db80a0b12f00000000000000051     linux       ubuntu

and need convert or update ip column (varbinary) string. try update whole table this:

declare @ip int   set @ip =  *   select *  table1,ip  update [dbo].[table1] set ip = convert(varchar(3), (@ip/16777216) & 255) + '.'          + convert(varchar(3), (@ip/65536) & 255) + '.'          + convert(varchar(3), (@ip/256) & 255) + '.'          + convert(varchar(3), @ip & 255) ip

but not work. type of declaration work 1 row/ip not update whole table.

my original table has on 1000 rows.

if logic conversion correct please try code below

  /*  create table table1 ([name] varchar(100), [ip] varchar(100),[os] varchar(100),[version] varchar(100)); insert table1 values ('jonh',        '0x20010db80a0b12f00000000000000001'      ,'os',         '8.184') ,('bob',         '0x20010db80a0b12f00000000000000092'      ,'win',        '10.844') ,('alice',    '0x20010db80a0b12f00000000000000051'     ,'linux',       'ubuntu');*/  select     name,    ip=      convert(varchar(3), (cast(ip varbinary(100))/16777216) & 255) + '.'      + convert(varchar(3), (cast(ip varbinary(100))/65536) & 255) + '.'      + convert(varchar(3), (cast(ip varbinary(100))/256) & 255) + '.'      + convert(varchar(3), cast(ip varbinary(100)) & 255),   os,   version  table1

see demo link


Comments

Post a Comment

Popular posts from this blog

python - Operations inside variables -

this question has answer here: evaluating mathematical expression in string 12 answers i want make python script finds maximum possible output using 2 operations. problem says there syntax error @ 2nd last line, in b in there. how can fix it? x = 0 = int(input("1st number:")) c = int(input("2nd number:" )) e = int(input("3rd number:" )) in range(4): if == 0: b = "+" elif == 1: b = "-" elif == 2: b = "/" else: b = "*" j in range(4): if j == 0: d = "+" elif j == 1: d = "-" elif j == 2: d = "/" else: d = "*" k = b c d e print(k) if you're after variables e on single line, couldn...
Read more

Generic Map Parameter java -

i having lot of methods of type: public static list<eduusers> getdetails(class c, map<string, integer> params) { list<eduusers> details = null; session session = hibernateutil.getsessionfactory().opensession(); transaction tx = null; try { tx = session.begintransaction(); criteria cr = session.createcriteria(c); (map.entry<string, integer> entry : params.entryset()) { cr.add(restrictions.eq(entry.getkey(), entry.getvalue())); } details = cr.list(); tx.commit(); } catch (exception asd) { log.debug(asd.getmessage()); if (tx != null) { tx.commit(); } } { session.close(); } return details; } i trying have generic method them , have written far: public static <t> list<t> getdetails(class<t> c, class<t> b) { l...
Read more

arrays - What causes a java.lang.ArrayIndexOutOfBoundsException and how do I prevent it? -

what arrayindexoutofboundsexception mean , how rid of it? here code sample triggers exception: string[] name = {"tom", "dick", "harry"}; for(int = 0; i<=name.length; i++) { system.out.print(name[i] +'\n'); } your first port of call should documentation explains reasonably clearly: thrown indicate array has been accessed illegal index. index either negative or greater or equal size of array. so example: int[] array = new int[5]; int boom = array[10]; // throws exception as how avoid it... um, don't that. careful array indexes. one problem people run thinking arrays 1-indexed, e.g. int[] array = new int[5]; // ... populate array here ... (int index = 1; index <= array.length; index++) { system.out.println(array[index]); } that miss out first element (index 0) , throw exception when index 5. valid indexes here 0-4 inclusive. correct, idiomatic for statement here be: for (int index = 0; index <...
Read more