Is their any function in sql to identify datatype and length of each column

Hi
i need to identify datatype and length of each column in a table by using SQL query.
plz assist me reagard the same.
thanks

Try this:
SELECT column_name,
       data_type,
       data_length,
       data_precision
FROM   user_tab_columns
WHERE table_name = <table_name>

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Hi Experts,
Is their any function module for deleting condition record i am trying this way.......
DATA: TABLE (4) TYPE C.
DATA: KNUM LIKE KONH-KNUMH
DATA: K_VEWE LIKE T681-KVEWE VALUE 'A'.
DATA: T681_STR LIKE T681.
DATA: LV_NUM TYPE I.
GET PARAMETERS
PARAMETERS: TABNO LIKE T681-KOTABNR.
PARAMETERS: TESTMODE DEFAULT 'X' AS CHECKBOX.
REFRESH INT_KNUMH.
Select single * from T681 into T681_STR
where kvewe = K_VEWE AND
KOTABNR = TABNO.
IF SY-SUBRC NE 0.
WRITE: / 'No entry in T681 for number ', TABNO.
WRITE: / 'Check whether corresponding condition table exists.'.
EXIT.
ENDIF.
TABLE = T681_STR-KOTAB.
SELECT KNUMH FROM (TABLE) INTO KNUM.
SELECT SINGLE * FROM KONH WHERE KNUMH = KNUM.
IF SY-SUBRC NE 0.
INT_KNUMH-KNUMH = KNUM.
COLLECT INT_KNUMH.
ENDIF.
ENDSELECT.
DESCRIBE TABLE INT_KNUMH LINES LV_NUM.
IF LV_NUM EQ 0.
WRITE: / 'No inconsistent entries found.'.
WRITE: / 'Each record in the condition table has a corresponding.'.
WRITE: / 'entry in the KONH table.'.
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LOOP AT INT_KNUMH.
IF TESTMODE IS INITIAL.
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Please let me know .....

Hi,
You can use Function module PRICING_CHECK to check condition record. Do a where-used list on it to see how to call it.
Regards
Kiran Sure

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SQL> select header_file, header_block
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HEADER_FIL HEADER_BLO
4 1692
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2 from dba_segments
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4 1692
1 row selected.
SQL> alter system dump datafile 4 block 1693;
Statement processed.
How can I see the dump block and identify the bytes stored for each column?
tab 0, row 0, @0x73b
tl: 125 fb: H-FL lb: 0x1 cc: 4
col 0: [25]
52 65 64 77 6f 6f 64 20 53 68 6f 72 65 73 20 41 70 61 72 74 6d 65 6e 74 73
col 1: [20] 00 54 00 01 02 08 00 00 00 01 00 00 00 01 00 00 00 00 1b 8d
col 2: [53]
00 54 00 01 02 0c 00 00 00 01 00 00 00 01 00 00 00 00 1b 8e 00 21 09 00 00
00 00 00 00 11 00 00 00 00 00 01 45 6d 65 72 67 65 6e 63 79 20 44 65 74 61
69 6c 73
col 3: [20] 00 54 00 01 01 08 00 00 00 01 00 00 00 01 00 00 00 00 1b 8f

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Maybe the INSTR function.
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0 db block gets
2 consistent gets
0 physical reads
0 redo size
584 bytes sent via SQL*Net to client
488 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
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488 bytes received via SQL*Net from client
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Error report:
SQL Error: ORA-12899: value too large for column "USER_XYZ"."TAB_XYZ"."COL_XYZ" (actual: 10, maximum: 8)
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-alter table TAB_XYZ succeeded.
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-8
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*Cause:
*Action:
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843217 wrote:
Note that widths are reported in characters if character length
semantics are in effect for the column, otherwise widths are
reported in bytes.You are looking at character lengths vs byte lengths.
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select max(length(COL_XYZ)) from TAB_XYZ;
-8
So the maximal string length for this column is 8 characters. To reduce the column width back to its original 8, we then run:
alter table TAB_XYZ modify (COL_XYZ varchar2(8));varchar2(8 byte) or varchar2(8 char)?
Use SQL Reference for datatype specification, length function, etc.
For more info, reference {forum:id=50} forum on the topic. And of course, the Globalization support guide.

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Is their any function in sql to identify datatype and length of each column

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