SELECT is the open SQL statement to read the data from the database. The general syntax for SELECT statement is as follows.
SELECT <result>
INTO <target>
FROM <source>
[WHERE <condition>]
| Clause | Description |
|---|---|
| SELECT <result> | Specifies which columns you want to read, whether one line or many lines needs to selected, and whether duplicate entries are allowed |
| INTO <target> | Determines the target area into which the selected data is to be placed |
| FROM <source> | Specifies the database table from which the data is to be selected |
| WHERE <condition> | specifies which lines are to be read by specifying conditions for the selection |
DATA: gwa_employee TYPE zemployee.
WRITE:/1 'Emp ID' color 5,9 'Name' color 5,17 'Place' color 5,
27 'Phone' color 5,39 'Dept' color 5.
SELECT * FROM zemployee INTO gwa_employee.
WRITE:/1 gwa_employee-id,9 gwa_employee-name,
17 gwa_employee-place,27 gwa_employee-phone,
39 gwa_employee-dept_id.
ENDSELECT.
In the above code,
- GWA_EMPLOYEE is the work area to hold one record of table ZEMPLOYEE at a time.
- SELECT * specifies all the rows and columns are read from the database.
- SELECT – ENDSELECT works in a loop, so the code between SELECT and ENDSELECT will be executed for each record found in the database table.
- WRITE statements are used to output the values in the list.
- If the SELECT statement returns any record then the value of the system variable SY-SUBRC is set to zero else a non zero value will be set.
- After the SELECT statement is executed, the value of the system variable SY-DBCNT contains the number of records read from the database. The value of SY-DBCNT is zero if no records are read from the database.
Table ZEMPLOYEE Entries
Report Output
what are the numeric values used with the WRITE statement ???
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