Using select statement and char function to create insert statement : Select « Select Query « Oracle PL / SQL






  1. Oracle PL / SQL
  2. Select Query
  3. Select

Using select statement and char function to create insert statement

    
SQL> CREATE TABLE emp (
  2    emp_id               NUMBER,
  3    ename             VARCHAR2(40),
  4    hire_date        DATE DEFAULT sysdate,
  5    end_date DATE,
  6    rate     NUMBER(5,2),
  7    CONSTRAINT emp_pk    PRIMARY KEY (emp_id)
  8  );

Table created.

SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (101, 'Mary', to_date('15-Nov-1961','dd-mon-yyyy'),null,169);

1 row created.

SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (102, 'Tom', to_date('16-Sep-1964','dd-mon-yyyy'),to_date('5-May-2004','dd-mon-yyyy'),135);

1 row created.

SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (104, 'Peter', to_date('29-Dec-1987','dd-mon-yyyy'),to_date('1-Apr-2004','dd-mon-yyyy'),99);

1 row created.

SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (105, 'Mike', to_date('15-Jun-2004','dd-mon-yyyy'),null,121);

1 row created.

SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (107, 'Less', to_date('2-Jan-2004','dd-mon-yyyy'),null,45);

1 row created.

SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (108, 'Park', to_date('1-Mar-1994','dd-mon-yyyy'),to_date('15-Nov-2004','dd-mon-yyyy'),220);

1 row created.

SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (110, 'Ink', to_date('4-Apr-2004','dd-mon-yyyy'),to_date('30-Sep-2004','dd-mon-yyyy'),84);

1 row created.

SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (111, 'Tike', to_date('23-Aug-1976','dd-mon-yyyy'),null,100);

1 row created.

SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (112, 'Inn', to_date('15-Nov-1961','dd-mon-yyyy'),to_date('4-Apr-2004','dd-mon-yyyy'),70);

1 row created.

SQL> INSERT INTO emp(emp_id, ename, hire_date,end_date, rate)VALUES (113, 'Kate', to_date('3-Mar-2004','dd-mon-yyyy'),to_date('31-Oct-2004','dd-mon-yyyy'),300);

1 row created.

SQL>
SQL>
SQL>
SQL> SELECT 'INSERT INTO emp' || chr(10)
  2      || '  (emp_id, rate,' || chr(10)
  3      || '   hire_date, ename)' || chr(10)
  4      || 'VALUES (' || TO_CHAR(emp_id) || ',' || chr(10)
  5      || '        ' || NVL(TO_CHAR(rate),'NULL')
  6                    || ',' || chr(10)
  7      || CASE WHEN hire_date IS NOT NULL then
  8            '        TO_DATE(''' || TO_CHAR(hire_date,'MM/DD/YYYY')
  9            || ', ''MM/DD/YYYY'')' || chr(10)
 10         ELSE
 11            '        NULL' || chr(10)
 12         END
 13      || '        ''' || ename || ''');'
 14  FROM emp
 15  WHERE end_date IS NULL;
INSERT INTO emp
  (emp_id, rate,
   hire_date, ename)
VALUES (101,
        169,
        TO_DATE('11/15/1961, 'MM/DD/YYY
Y')
        'Mary');

INSERT INTO emp
  (emp_id, rate,
   hire_date, ename)
VALUES (105,
        121,
        TO_DATE('06/15/2004, 'MM/DD/YYY
Y')
        'Mike');

INSERT INTO emp
  (emp_id, rate,
   hire_date, ename)
VALUES (107,
        45,
        TO_DATE('01/02/2004, 'MM/DD/YYY
Y')
        'Less');

INSERT INTO emp
  (emp_id, rate,
   hire_date, ename)
VALUES (111,
        100,
        TO_DATE('08/23/1976, 'MM/DD/YYY
Y')
        'Tike');


4 rows selected.

SQL>
SQL>
SQL>
SQL> drop table emp;

Table dropped.








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