It mainly formats the display of columns. This command has many options: COL [UMN] [{column | expr} [option] Option option can be the following clause: ALI [AS] aliasCLE [AR] FOLD_A [FTER] FOLD_ B [EFORE] FOR [MAT] formatHEA [DING] textJUS [encoding] {L [EFT] | C [ENTER] | C [ENTRE] | R
It mainly formats the display of columns. This command has many options: COL [UMN] [{column | expr} [option] Option option can be the following clause: ALI [AS] alias CLE [AR] FOLD_A [FTER] FOLD_ B [EFORE] FOR [MAT] format HEA [DING] text JUS [encoding] {L [EFT] | C [ENTER] | C [ENTRE] | R
It mainly formats the display of columns.
This command has the following options:
COL [UMN] [{column | expr} [option…]
The Option can be the following clause:
ALI [AS] alias
CLE [AR]
FOLD_A [FTER]
FOLD_ B [EFORE]
FOR [MAT] format
HEA [DING] text
JUS [cipher] {L [EFT] | C [ENTER] | C [ENTRE] | R [IGHT]}
LIKE {expr | alias}
NEWL [INE]
NEW_V [ALUE] variable
NOPRI [NT] | PRI [NT]
NUL [L] text
OLD_V [ALUE] variable
ON | OFF
WRA [PPED] | WOR [D_WRAPPED] | TRU [NCATED]
1 ). Change the default Column Title
COLUMN column_name HEADING column_heading -- The experiment failed to change the title command. I don't know what the problem is.
For example:
SQL> select * from dept;
DEPTNO DNAME LOC
-----------------------------------------------
10 ACCOUNTING NEW YORK
SQL> col LOC heading location
SQL> select * from dept;
Deptno dname location
------------------------------------------------
10 ACCOUNTING NEW YORK