Oracle PL/SQL/Numeric Math Functions/SIN — различия между версиями

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Версия 13:45, 26 мая 2010

SIN(0)

 
SQL> -- SIN(x):Returns the sine of x.
SQL>
SQL> select SIN(0) from dual;
    SIN(0)
----------
         0
SQL>



SIN(30*3.14159ANH(EXP(4) LOG(LN(32)

 
SQL>
SQL>
SQL> select sin(30*3.14159265/180), tanh(0.5)
  2  ,      exp(4), log(2,32), ln(32)
  3  from   dual;
SIN(30*3.14159265/180)  TANH(0.5)     EXP(4)  LOG(2,32)     LN(32)
---------------------- ---------- ---------- ---------- ----------
            .499999999 .462117157   54.59815          5  3.4657359
SQL>



SIN: Returns the sine of a value

 
SQL>
SQL>
SQL> -- create demo table
SQL> create table TestTable(
  2    ID                 VARCHAR2(4 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, MyNumber) values("1","Alison",to_date("19960711","YYYYMMDD"),12.12);
1 row created.
SQL> insert into TestTable (ID, MyName, MyDate, MyNumber) values("1","Alison",to_date("19970622","YYYYMMDD"),-12.12);
1 row created.
SQL> insert into TestTable (ID, MyName, MyDate, MyNumber) values("1","Alison",to_date("19980513","YYYYMMDD"),22.1);
1 row created.
SQL> insert into TestTable (ID, MyName, MyDate, MyNumber) values("1","Alison",to_date("19990624","YYYYMMDD"),-2.12);
1 row created.
SQL> insert into TestTable (ID, MyName, MyDate, MyNumber) values("1","Alison",to_date("20000415","YYYYMMDD"),2.1);
1 row created.
SQL>
SQL>
SQL> select * from TestTable
  2
SQL>
SQL> --SIN: Returns the sine of a value
SQL>
SQL> SELECT SIN(MyNumber*2*3.1416/360) FROM TestTable;
SIN(MYNUMBER*2*3.1416/360)
--------------------------
                .209960344
                -.20996034
                .376225099
                -.03699262
                .036643794
SQL>
SQL> drop table TestTable;
Table dropped.
SQL>
SQL>