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==dump(90101,16)==



<source lang="sql">

SQL>
SQL>
SQL> select 90101, dump(90101,16) from dual
2 union all
3 select 90102, dump(90102,16) from dual
4 union all
5 select 90103, dump(90103,16) from dual
6 /
90101 DUMP(90101,16)
---------- ---------------------
90101 Typ=2 Len=4: c3,a,2,2
90102 Typ=2 Len=4: c3,a,2,3
90103 Typ=2 Len=4: c3,a,2,4

</source>

==dump( ename, 16 )==



<source lang="sql">

SQL>
SQL> CREATE TABLE EMP
2 (EMPNO NUMBER(4) NOT NULL,
3 ENAME VARCHAR2(10),
4 JOB VARCHAR2(9),
5 MGR NUMBER(4),
6 HIREDATE DATE,
7 SAL NUMBER(7, 2),
8 COMM NUMBER(7, 2),
9 DEPTNO NUMBER(2)
10 );
Table created.
SQL>
SQL> INSERT INTO EMP VALUES (7369, "SMITH", "CLERK", 7902,TO_DATE("17-DEC-1980", "DD-MON-YYYY"), 800, NULL, 20);
1 row created.
SQL> INSERT INTO EMP VALUES (7499, "ALLEN", "SALESMAN", 7698,TO_DATE("20-FEB-1981", "DD-MON-YYYY"), 1600, 300, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7521, "WARD", "SALESMAN", 7698,TO_DATE("22-FEB-1981", "DD-MON-YYYY"), 1250, 500, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7566, "JONES", "MANAGER", 7839,TO_DATE("2-APR-1981", "DD-MON-YYYY"), 2975, NULL, 20);
1 row created.
SQL> INSERT INTO EMP VALUES (7654, "MARTIN", "SALESMAN", 7698,TO_DATE("28-SEP-1981", "DD-MON-YYYY"), 1250, 1400, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7698, "BLAKE", "MANAGER", 7839,TO_DATE("1-MAY-1981", "DD-MON-YYYY"), 2850, NULL, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7782, "CLARK", "MANAGER", 7839,TO_DATE("9-JUN-1981", "DD-MON-YYYY"), 2450, NULL, 10);
1 row created.
SQL> INSERT INTO EMP VALUES (7788, "SCOTT", "ANALYST", 7566,TO_DATE("09-DEC-1982", "DD-MON-YYYY"), 3000, NULL, 20);
1 row created.
SQL> INSERT INTO EMP VALUES (7839, "KING", "PRESIDENT", NULL,TO_DATE("17-NOV-1981", "DD-MON-YYYY"), 5000, NULL, 10);
1 row created.
SQL> INSERT INTO EMP VALUES (7844, "TURNER", "SALESMAN", 7698,TO_DATE("8-SEP-1981", "DD-MON-YYYY"), 1500, 0, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7876, "ADAMS", "CLERK", 7788,TO_DATE("12-JAN-1983", "DD-MON-YYYY"), 1100, NULL, 20);
1 row created.
SQL> INSERT INTO EMP VALUES (7900, "JAMES", "CLERK", 7698,TO_DATE("3-DEC-1981", "DD-MON-YYYY"), 950, NULL, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7902, "FORD", "ANALYST", 7566,TO_DATE("3-DEC-1981", "DD-MON-YYYY"), 3000, NULL, 20);
1 row created.
SQL> INSERT INTO EMP VALUES (7934, "MILLER", "CLERK", 7782,TO_DATE("23-JAN-1982", "DD-MON-YYYY"), 1300, NULL, 10);
1 row created.
SQL>
SQL> select * from emp;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
---------- ---------- --------- ---------- --------- ---------- ---------- ----------
7369 SMITH CLERK 7902 17-DEC-80 800 20
7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30
7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30
7566 JONES MANAGER 7839 02-APR-81 2975 20
7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30
7698 BLAKE MANAGER 7839 01-MAY-81 2850 30
7782 CLARK MANAGER 7839 09-JUN-81 2450 10
7788 SCOTT ANALYST 7566 09-DEC-82 3000 20
7839 KING PRESIDENT 17-NOV-81 5000 10
7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30
7876 ADAMS CLERK 7788 12-JAN-83 1100 20
7900 JAMES CLERK 7698 03-DEC-81 950 30
7902 FORD ANALYST 7566 03-DEC-81 3000 20
7934 MILLER CLERK 7782 23-JAN-82 1300 10
14 rows selected.
SQL>
SQL>
SQL> select dump( ename, 16 ) from emp;
DUMP(ENAME,16)
----------------------------------------------------------------------------------------------------
Typ=1 Len=5: 53,4d,49,54,48
Typ=1 Len=5: 41,4c,4c,45,4e
Typ=1 Len=4: 57,41,52,44
Typ=1 Len=5: 4a,4f,4e,45,53
Typ=1 Len=6: 4d,41,52,54,49,4e
Typ=1 Len=5: 42,4c,41,4b,45
Typ=1 Len=5: 43,4c,41,52,4b
Typ=1 Len=5: 53,43,4f,54,54
Typ=1 Len=4: 4b,49,4e,47
Typ=1 Len=6: 54,55,52,4e,45,52
Typ=1 Len=5: 41,44,41,4d,53
Typ=1 Len=5: 4a,41,4d,45,53
Typ=1 Len=4: 46,4f,52,44
Typ=1 Len=6: 4d,49,4c,4c,45,52
14 rows selected.
SQL>
SQL> drop table emp;
Table dropped.
SQL> --

</source>

==dump(reverse(90101),16)==



<source lang="sql">

SQL>
SQL>
SQL> select 90101, dump(reverse(90101),16) from dual
2 union all
3 select 90102, dump(reverse(90102),16) from dual
4 union all
5 select 90103, dump(reverse(90103),16) from dual
6 /
90101 DUMP(REVERSE(90101),1
---------- ---------------------
90101 Typ=2 Len=4: 2,2,a,c3
90102 Typ=2 Len=4: 3,2,a,c3
90103 Typ=2 Len=4: 4,2,a,c3
SQL>
SQL>

</source>

==dump table column==



<source lang="sql">

SQL>
SQL> CREATE TABLE EMP
2 (EMPNO NUMBER(4) NOT NULL,
3 ENAME VARCHAR2(10),
4 JOB VARCHAR2(9),
5 MGR NUMBER(4),
6 HIREDATE DATE,
7 SAL NUMBER(7, 2),
8 COMM NUMBER(7, 2),
9 DEPTNO NUMBER(2)
10 );
Table created.
SQL>
SQL> INSERT INTO EMP VALUES (7369, "SMITH", "CLERK", 7902,TO_DATE("17-DEC-1980", "DD-MON-YYYY"), 800, NULL, 20);
1 row created.
SQL> INSERT INTO EMP VALUES (7499, "ALLEN", "SALESMAN", 7698,TO_DATE("20-FEB-1981", "DD-MON-YYYY"), 1600, 300, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7521, "WARD", "SALESMAN", 7698,TO_DATE("22-FEB-1981", "DD-MON-YYYY"), 1250, 500, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7566, "JONES", "MANAGER", 7839,TO_DATE("2-APR-1981", "DD-MON-YYYY"), 2975, NULL, 20);
1 row created.
SQL> INSERT INTO EMP VALUES (7654, "MARTIN", "SALESMAN", 7698,TO_DATE("28-SEP-1981", "DD-MON-YYYY"), 1250, 1400, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7698, "BLAKE", "MANAGER", 7839,TO_DATE("1-MAY-1981", "DD-MON-YYYY"), 2850, NULL, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7782, "CLARK", "MANAGER", 7839,TO_DATE("9-JUN-1981", "DD-MON-YYYY"), 2450, NULL, 10);
1 row created.
SQL> INSERT INTO EMP VALUES (7788, "SCOTT", "ANALYST", 7566,TO_DATE("09-DEC-1982", "DD-MON-YYYY"), 3000, NULL, 20);
1 row created.
SQL> INSERT INTO EMP VALUES (7839, "KING", "PRESIDENT", NULL,TO_DATE("17-NOV-1981", "DD-MON-YYYY"), 5000, NULL, 10);
1 row created.
SQL> INSERT INTO EMP VALUES (7844, "TURNER", "SALESMAN", 7698,TO_DATE("8-SEP-1981", "DD-MON-YYYY"), 1500, 0, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7876, "ADAMS", "CLERK", 7788,TO_DATE("12-JAN-1983", "DD-MON-YYYY"), 1100, NULL, 20);
1 row created.
SQL> INSERT INTO EMP VALUES (7900, "JAMES", "CLERK", 7698,TO_DATE("3-DEC-1981", "DD-MON-YYYY"), 950, NULL, 30);
1 row created.
SQL> INSERT INTO EMP VALUES (7902, "FORD", "ANALYST", 7566,TO_DATE("3-DEC-1981", "DD-MON-YYYY"), 3000, NULL, 20);
1 row created.
SQL> INSERT INTO EMP VALUES (7934, "MILLER", "CLERK", 7782,TO_DATE("23-JAN-1982", "DD-MON-YYYY"), 1300, NULL, 10);
1 row created.
SQL>
SQL> select * from emp;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
---------- ---------- --------- ---------- --------- ---------- ---------- ----------
7369 SMITH CLERK 7902 17-DEC-80 800 20
7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30
7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30
7566 JONES MANAGER 7839 02-APR-81 2975 20
7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30
7698 BLAKE MANAGER 7839 01-MAY-81 2850 30
7782 CLARK MANAGER 7839 09-JUN-81 2450 10
7788 SCOTT ANALYST 7566 09-DEC-82 3000 20
7839 KING PRESIDENT 17-NOV-81 5000 10
7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30
7876 ADAMS CLERK 7788 12-JAN-83 1100 20
7900 JAMES CLERK 7698 03-DEC-81 950 30
7902 FORD ANALYST 7566 03-DEC-81 3000 20
7934 MILLER CLERK 7782 23-JAN-82 1300 10
14 rows selected.
SQL>
SQL> select dump( ename, 8 ) from emp;
DUMP(ENAME,8)
----------------------------------------------------------------------------------------------------
Typ=1 Len=5: 123,115,111,124,110
Typ=1 Len=5: 101,114,114,105,116
Typ=1 Len=4: 127,101,122,104
Typ=1 Len=5: 112,117,116,105,123
Typ=1 Len=6: 115,101,122,124,111,116
Typ=1 Len=5: 102,114,101,113,105
Typ=1 Len=5: 103,114,101,122,113
Typ=1 Len=5: 123,103,117,124,124
Typ=1 Len=4: 113,111,116,107
Typ=1 Len=6: 124,125,122,116,105,122
Typ=1 Len=5: 101,104,101,115,123
Typ=1 Len=5: 112,101,115,105,123
Typ=1 Len=4: 106,117,122,104
Typ=1 Len=6: 115,111,114,114,105,122
14 rows selected.
SQL>
SQL> drop table emp;
Table dropped.
SQL> --

</source>

==START_POSITION specifies which character in the supplied string to start with, and the optional length specifies how many characters to consider.==



<source lang="sql">

SQL>
SQL> SELECT
2 DUMP("ABC",1010,1) type_info
3 FROM dual;
TYPE_INFO
------------------------------------------------
Typ=96 Len=3 CharacterSet=WE8MSWIN1252: 65,66,67

</source>

==Syntax: DUMP(expression [,RETURN_FORMAT [START_POSITION] [LENGTH]])==



<source lang="sql">

SQL>
SQL> SELECT
2 DUMP("ABC",1010) type_info
3 FROM dual;
TYPE_INFO
------------------------------------------------
Typ=96 Len=3 CharacterSet=WE8MSWIN1252: 65,66,67

</source>

==Union all with dump reverse==



<source lang="sql">

SQL>
SQL>
SQL> select 90101, dump(reverse(90101),16) from dual
2 union all
3 select 90102, dump(reverse(90102),16) from dual
4 union all
5 select 90103, dump(reverse(90103),16) from dual
6 /
90101 DUMP(REVERSE(90101),1
---------- ---------------------
90101 Typ=2 Len=4: 2,2,a,c3
90102 Typ=2 Len=4: 3,2,a,c3
90103 Typ=2 Len=4: 4,2,a,c3
3 rows selected.
SQL>
SQL> --

</source>

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в 13:45, 26 мая 2010

Admin: 1 версия