little tips and tricks, which i stumbled upon randomly

Wednesday, April 11, 2012

How to use '\' character in Sybase IQ procedures

When you compile any procedure with '\' in Sybase IQ, your code will be replaced with '\\' to avoid whis
use CHAR(92) instead.

CREATE PROCEDURE MY_TEST
BEGIN
        SELECT LIST(TABLE_NAME, CHAR(92)) FROM SYSTABLES;
END;
/

Oracle style LTRIM / RTRIM for SYBASE IQ

Oracle's LTRIM/RTRIM supports second parameter to remove other characters than blank.
For example
select LTRIM('My Textaaaa', 'a') from dual; will return 'My Text'.
Same behavior can be simulated with Sybase IQ as well

LTRIM:
substr(<STRING>, length(<STRING>)-length(ltrim(replace( <STRING> ,<CHARACTERS TO REMOVE>,' ')))+1)

RTRIM:
substr( <STRING> ,1,length(rtrim(replace( <STRING> , <CHARACTERS TO REMOVE> ,' '))))

Tuesday, April 10, 2012

Sybase IQ equavalent for Oracle wm_concat and SQL group_concat

Sybase IQ equavalent for Oracle wm_concat and SQL group_concat is LIST() function.

This function takes 2 parameters column_name (mandotory) and separator (optional default ",").

Sample query:
select list(table_name) from systable

Click for related Sybase Central entry

Tuesday, April 3, 2012

Oracle Translate function equivalent for Sybase IQ

Oracle translate function has many great usages like Eliminating Double Quotes, Encryption/Decryption etc.

I just wrote SybaseIQ version of it. Code can easly be improved but version 1.0 is not a bad place to start.
Source code is below please feel free to use and comment.


CREATE FUNCTION TRANSLATE (
-- -------------------------------------------------------------------------------------
-- Designer    : Ongun Demirler
-- Author    : Ongun Demirler  
-- Description  :    Sybase IQ replacement for Oracle Translate function
--                    Overrides
--
-- Ammedments   :
--    When        Who                    What
--    ===========    ========            =========================================
--    03.04.2012    Ongun DEMIRLER        Initial design and implementation
--
--    Parameters:
--                P_STR: original string
--                P_SRC: source characters
--                P_DEST: destination characters
--  
-- -------------------------------------------------------------------------------------
    P_STR VARCHAR(4000),
    P_SRC VARCHAR(4000),
    P_DEST VARCHAR(4000) )
RETURNS VARCHAR(4000)
BEGIN
 
    DECLARE a_ret_str varchar(4000); --Return string
    DECLARE a_pointer integer; --Character pointer
    DECLARE a_src_length integer; --Length of source string
 
    set a_src_length = LENGTH(P_SRC);
    --No characters to translate from, source or to
    IF LENGTH(P_STR) = 0 OR a_src_length = 0 OR LENGTH(P_DEST) = 0 THEN RETURN ('') END IF;
 
    --Create replace statement for each character in p_src
    SET a_pointer = 1;
    SET a_ret_str = P_STR;
 
    --Replace each character from src with corresponding character from dest
    WHILE (a_pointer <= a_src_length) LOOP
        SET a_ret_str = replace(a_ret_str, SUBSTR(P_SRC, a_pointer, 1) , SUBSTR(P_DEST, a_pointer, 1));
        SET a_pointer = a_pointer + 1;
    END LOOP;
 
    RETURN (a_ret_str);
END


Friday, March 23, 2012

Goldan Gate - GGS ERROR 160 Bad column index

Unfortunately error  message is not explaining much here.
[Date Time] GGS ERROR       160  Bad column index ([Column Count]) specified for table [Owner].[Table Name], max columns = [Column Count].

But reason and solution is simple, new column(s) are added to source table. Check your table definitions and synchronize table structure.

Wednesday, March 21, 2012

iPhone Facebook wifi bağlantı problemi

Özellikle Airties modem kullanıcılarını etkileyen bu sorun aslında modeminizle ilgili.
DNS ayarlarınızı değiştirerek kendi arama motorlarını kullanamızı sağlamaya çalışan garantibul.com, aramamotoru.com (lüften bu siteleri ziyaret etmeyin.) gibi siteler modem şifrenizin olmamasından yada ön tanımlı şifre olmasından faydalanarak modem ayarlarınızı değiştirmiş durumdalar.
Sorunu çözmek için modeminizin fişi çekin. Modemi birkaç saniye sonra tekrar açabilirsiniz.

Modemi açtıktan sonra erişim şifresini değiştirmeniz sorunun tekrarlanmasını önleyecektir.


iPhone Facebook connection problem over wifi

This bug mainly affects Airties users. There is new trojan which changes DNS setting on your modem to use their search engines. (garantibul.com, aramamotoru.com are famous ones in Turkey. Please do not visit these web pages.). To be able to fix this issure just power off your modem. After few seconds you can restart it.
Do not forget to set new password for your modem.