How to allow a max of 4 chars to be typed in gui textfield

I have textfields in my gui which i only want to allow the user to type in 4 numeric digits...is there a way to set some textfield property so that it will not hold more than 4 digits.

That isn't a great solution. What if they are at length 4 and they press the backspace key or the delete key, or they assing a key to clear the contents? You would have to add all those checks to your listener. If you modify the document then you don't have to worry about key bindings or pasting or checking for delete or backspace.

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How to retreive the max data length of a column

Hello All,
I know how to do a select to get the max data length of a column it is this :
SELECT MAX(LENGTH(COLUMN_NAME) FROM table.
However, I need this information combined with my SQL that returns the Data_type and length from the USER_TAB_COLUMNS. So taking the emp example if the ename column was 50 as VARCHAR2 but the max data entered in it was just 20 I want the information like this:
SELECT COLUMN_NAME, DATA_LENGTH, and the Max length of 20
FROM USER_TAB_COLUMNS WHERE TABLE_NAME='EMP';
I don't know how to get the Max Length of the Column in this table. Can anyone suggest me a hint? An Inline view maybe?
Thanks

Still not sure about your requirements, but how about this
SQL> CREATE OR REPLACE FUNCTION get_max_length(p_table in varchar2, p_col in varchar2) return pls_integer
2 is
3    v_cnt pls_integer;
4 begin
5    execute immediate 'select max(length('||p_col||')) from '||p_table into v_cnt;
6    return v_cnt;
7 end get_max_length;
8 /
Function created.
SQL>
SQL> SELECT COLUMN_NAME,
2         DATA_LENGTH,
3         get_max_length(TABLE_NAME, COLUMN_NAME) max_length
4 FROM USER_TAB_COLUMNS
5 WHERE TABLE_NAME='EMP'
6 AND DATA_TYPE like '%CHAR%'
7 ;
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ENAME                                   10          6
JOB                                      9          9
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This question has appeared many times and you could search for previous answers.
The most popular answer is to write a function which attempts to_number(input_string). If it is not a number this raises an exception which you can handle, thus allowing the function to return true or false.

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Post Asap.
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Hi Friends,
Let me explain my scenerio clearly.
I need to have five columns as below with char Current Assigne.
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Hi ,
can anyone let me know how to retrive the max 3 values from a table...
I want to get the top 3 values of salary from emp table
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Praveen

Praveen,
Consider the following example:
SQL> set pagesize 9999
SQL> select empno, ename, sal
2 from scott.emp;
 EMPNO ENAME SAL
 7369 SMITH 800
 7499 ALLEN 1600
 7521 WARD 1250
 7566 JONES 2975
 7654 MARTIN 1250
 7698 BLAKE 2850
 7782 CLARK 2450
 7788 SCOTT 3000
 7839 KING 5000
 7844 TURNER 1500
 7876 ADAMS 1100
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 7902 FORD 3000
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SQL> select sal
2 from
3 (select distinct sal
4 from scott.emp
5 order by sal desc)
6 where rownum<=3;
 SAL
 5000
 3000
 2975If you want to see all the employees having any of top-3 salaries you can use the following one:
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2 from
3 (select empno, ename, sal, dense_rank() over (order by sal desc) dr
4 from scott.emp
5 )
6 where dr<=3;
 EMPNO ENAME SAL
 7839 KING 5000
 7788 SCOTT 3000
 7902 FORD 3000
 7566 JONES 2975If you want to get the first 3 employees with the highest salaries. You can use the following one.
But, be aware, there might be more employees having $3000,00 salary.
SQL> select empno, ename, sal
2 from
3 (select empno, ename, sal
4 from scott.emp
5 order by sal desc)
6* where rownum<=3
SQL> /
 EMPNO ENAME SAL
 7839 KING 5000
 7788 SCOTT 3000
 7902 FORD 3000
SQL>

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Hi,
The ZBF link sent earlier show how we can inspect URI in http request
parameter-map type regex uri_regex_cm
pattern “.*cmd.exe”
class-map type inspect http uri_check_cm
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Puneet.

Hi,
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waiting

Hello to everybody
It's ok for the ~ " # % & * : < > ? / \ { | } characters, they cannot be allowed,
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I also think there is not an exiting function which can get it, but we can work around. Can you give some ideas to work around it?

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Hi manibest,
You're trying to find a technical workaround on how to handle this in schema. But we have to understand that schema is to defining the structure and content of XML and you want a schema which is not going to define the content/structure of your
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Hey MTdev,
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Kevin
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Hi,
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How to get the max value in the query??

Plant calday(mm.dd.yyyy)       Soldout.Qty
0001   01.01.2005               10
0001   01.02.2005               20
0001   01.03.2005               05
0001   01.04.2005               16
0001   01.05.2005               10
0001   01.06.2005               14
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Hi Bhanu,
I tried the calculation results as...Maximum,..
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How to increas the max user process number in Solaris 11?

Hey
Could anyone told me how to increas the max user process number in Solaris 11? I tried below as described in https://blogs.oracle.com/hasham/entry/solaris_10_increasing_number_of , but it cannot work.
set pidmax=60000
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Thanks!
Edited by: 966272 on Oct 18, 2012 7:38 AM

Perhaps you should work your original forum post:
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You make an assumption in that other post about exceeding various maximums. That may be true or it may not be true. Since the installation of a database program seems to be your actual expectation, go work that forum thread instead.

How to allow multiple selection of nodes in a JTree

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Thanks
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By default when you create new instance og JTree the selection model is multiple selection. And if you want to change it you use next:
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or
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How to allow a max of 4 chars to be typed in gui textfield

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