SQLPLUS的常用用法[三]

Col

COL col_name CLEAR

clear the column format and set it to the default setting



COL col_name FOR[MAT] format

format column, tipical usage have:

COL col_name FORMAT A99 --> VARCHAR2

COL col_name FORMAT $9999.99 --> $2345.23

COL col_name FORMAT 0999.99 --> 0023.23

COL col_name FORMAT 9999MI --> 9999-

COL col_name FORMAT 9,999PR --> <-9,999->

COL col_name DATE



COL col_name HEA[DING] text

define one heading for one column. refer to SET HEADING OFF.



COL col_name JUS[TIFY] {L[EFT]|C[ENTER]|R[IGHT]}

By default Numbers are right justified, text is left justified.

COL col_name NEW_VALUE new_var

Specify a variable to hold a column value.

15:26:50 lab@ORCL>column tname new_value v_tname

15:26:54 lab@ORCL>select tname from tab where rownum <2;

已选择 1 行。

已用时间: 00: 00: 00.01

15:26:57 lab@ORCL>define v_tname

DEFINE V_TNAME = "DEPT" (CHAR)

COL col_name NOPRI[NT]|PRI[NT]

Display the column. But when there is only column, this option has no effect.

COL col_name ON|OFF

Enable or disable column format attributes

COL col_name WRA[PPED]|WOR[D_WRAPPED]|TRU[NCATED]

15:07:02 lab@ORCL>col tn format a10 wrapped

15:08:48 lab@ORCL>select 'sdfljsdlfjsldfjsdlkfjsldfj' tn from dual;

TN

----------

sdfljsdlfj

sldfjsdlkf

jsldfj

15:10:22 lab@ORCL>col tn format a10 word_wrapped

15:10:41 lab@ORCL>select 'what are you doing here' tn from dual;

TN

----------

what are

you doing

here

15:10:44 lab@ORCL>col tn format a10 truncated

15:11:20 lab@ORCL>select 'what are you doing here' tn from dual;

TN

----------

what are y

Accept

User input, example:

16:26:51 lab@ORCL>select * from &tname;

原值 1: select * from &tname

新值 1: select * from tab

TABTYPE CLUSTERID

------- ----------

TABLE

TABLE

TABLE

TABLE

VIEW

VIEW

TABLE

TABLE

TABLE

TABLE

TABLE

TABLE

TABLE

已选择13行。

BREAK

BREAK ON {column|expr|ROW|REPORT} action

Specify where and how formatting will change. It is always used with compute. tipical usage:

break

break on col1

break on col_1 on col_2

break on column skip n

Compute

you also use avg,count,max,min,number,std,sum,var function in this command set.

16:38:32 lab@ORCL>compute sum of sal on deptno

16:38:58 lab@ORCL>break on deptno skip 1

16:39:00 lab@ORCL>select deptno,ename,sal from emp where deptno in(10,20) order by 1,2;

DEPTNO ENAME SAL

---------- ---------- ----------

10 CLARK 2450

KING 5000

MILLER 1300

********** ----------

sum 8750

20 ADAMS 1100

CLARK 2550

FORD 3000

JONES 2975

KING 5100

MILLER 1400

SCOTT 3000

SMITH 800

********** ----------

sum 19925

已选择11行。

已用时间: 00: 00: 00.04