Select Statements in SAP ABAP

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Different types of select statements used in SAP ABAP programming to get data from database in SAP ABAP.
Select Single which is used to get single exact record from database table. 
REPORT  ZSELECT_SINGLE                          .
TABLES: MARA.
SELECT SINGLE *
          FROM MARA
          WHERE MATNR = '100-100'.
  WRITE:/ MARA-MATNR,
          MARA-MATKL,
          MARA-MTART.
Select Up to rows, is used to get specific number of records from database table. 
REPORT  ZSELECT_UPTO                            .
TABLES: MARD.
PARAMETERS: V1 TYPE I.
SELECT *
  FROM MARD
  UP TO V1 ROWS
  WHERE MATNR = '100-100'.

  WRITE:/ MARD-MATNR,
          MARD-WERKS,
          MARD-LGORT,
          MARD-LABST.
ENDSELECT.

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