TRUNC(Number,-1) : TRUNC « Numeric Math Functions « Oracle PL / SQL

Home
Oracle PL / SQL
1.Aggregate Functions
2.Analytical Functions
3.Char Functions
4.Constraints
5.Conversion Functions
6.Cursor
7.Data Type
8.Date Timezone
9.Hierarchical Query
10.Index
11.Insert Delete Update
12.Large Objects
13.Numeric Math Functions
14.Object Oriented Database
15.PL SQL
16.Regular Expressions
17.Report Column Page
18.Result Set
19.Select Query
20.Sequence
21.SQL Plus
22.Stored Procedure Function
23.Subquery
24.System Packages
25.System Tables Views
26.Table
27.Table Joins
28.Trigger
29.User Previliege
30.View
31.XML
Oracle PL / SQL » Numeric Math Functions » TRUNC 
TRUNC(Number,-1)



SQL>
SQL>
SQL>
SQL> -- create demo table
SQL> create table TestTable(
  2    ID                 VARCHAR2(BYTE)         NOT NULL,
  3    MyName             VARCHAR2(10 BYTE),
  4    MyDate             DATE,
  5    MyNumber           Number(8,2)
  6  )
  7  /

Table created.

SQL>
SQL>
SQL> insert into TestTable (ID, MyName, MyDate, MyNumbervalues('1','Alison',to_date('19960711','YYYYMMDD'),12.12);

row created.

SQL> insert into TestTable (ID, MyName, MyDate, MyNumbervalues('1','Alison',to_date('19970622','YYYYMMDD'),-12.12);

row created.

SQL> insert into TestTable (ID, MyName, MyDate, MyNumbervalues('1','Alison',to_date('19980513','YYYYMMDD'),22.1);

row created.

SQL> insert into TestTable (ID, MyName, MyDate, MyNumbervalues('1','Alison',to_date('19990624','YYYYMMDD'),-2.12);

row created.

SQL> insert into TestTable (ID, MyName, MyDate, MyNumbervalues('1','Alison',to_date('20000415','YYYYMMDD'),2.1);

row created.

SQL>
SQL> select from TestTable;

ID   MYNAME     MYDATE      MYNUMBER
---- ---------- --------- ----------
1    Alison     11-JUL-96      12.12
1    Alison     22-JUN-97     -12.12
1    Alison     13-MAY-98       22.1
1    Alison     24-JUN-99      -2.12
1    Alison     15-APR-00        2.1

SQL>
SQL> SELECT ID, ROUND(MyNumber,-1), TRUNC(MyNumber,-1FROM TestTable;

ID   ROUND(MYNUMBER,-1TRUNC(MYNUMBER,-1)
---- ------------------ ------------------
1                    10                 10
1                   -10                -10
1                    20                 20
1                     0                  0
1                     0                  0

SQL>
SQL> drop table TestTable;

Table dropped.

SQL>
SQL>
           
       
Related examples in the same category
1.TRUNC(x [, y]) Returns the result of truncating x an optional y decimal places
2.TRUNC() returns its argument truncated to the number of decimal places specified with the second argument.
3.The value 109.29 was truncated to the single digit on the left side of the decimal point
4.TRUNC: Returns the truncated value (removes decimal part of a number, precision adjustable)
5.TRUNC with precision
6.TRUNC(44.647, 0)
7.TRUNC(44.647, -1)
8.TRUNC(Number,1): truncate values from a column
9.select trunc( 12345.67890 )
10.select trunc( 12345.67890, 2 )
11.Use TRUNC in PL/SQL
12.TRUNC Demo
java2s.com  | Contact Us | Privacy Policy
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.