Still used the old way SELECT COUNT(*) to get total number of records stored in a table?
If you are using HANA database, there is another approach to achieve the same.
In HANA there is a metadata table m_tables which stores the related information:
You can find its definition in SAP help.
You can use the following ABAP code to access this HANA table from ABAP server:
class CL_CRM_HOME_TABLE_SIZE_TOOL definition public final create public .public section. TYPES: BEGIN OF ty_size, table_name TYPE char256, record_count TYPE int4, table_size TYPE int4, END OF ty_size.TYPES: tt_size TYPE TABLE OF ty_size with key table_name. class-methods GET_SIZE importing !IT_INPUT type STRING_TABLE returning value(RT_RESULT) type tt_size .protected section.private section.ENDCLASS.CLASS CL_CRM_HOME_TABLE_SIZE_TOOL IMPLEMENTATION. METHOD get_size. DATA(lv_in) = REDUCE string( INIT x TYPE string FOR <data> IN it_input NEXT x = SWITCH #( x WHEN space THEN |'{ <data> }'| ELSE x && ',' && |'{ <data> }'| ) ). TRY. DATA(lo_sql_con) = cl_sql_connection=>get_connection( ). DATA(lo_stmt) = lo_sql_con->create_statement( ). DATA: lv_stmt TYPE string. lv_stmt = |select table_name, record_count, table_size from m_tables where table_name in ({ lv_in })|. DATA(lo_res) = lo_stmt->execute_query( lv_stmt ). GET REFERENCE OF rt_result INTO DATA(lr_data). lo_res->set_param_table( lr_data ). lo_res->next_package( ). lo_res->close( ). CATCH cx_sql_exception INTO DATA(cx_root). WRITE:/ 'Error:', cx_root->get_text( ). RETURN. ENDTRY. ENDMETHOD.ENDCLASS.Consumer report:
REPORT zsize.DATA: lt_input TYPE String_table.lt_input = VALUE #( ( CONV string( 'TADIR' ) ) ( CONV string( 'TFDIR' ) ) ).DATA(lt_size) = cl_crm_home_table_size_tool=>get_size( lt_input ).cl_demo_output=>display_data( lt_size ).Result:
要获取更多Jerry的原创文章，请关注公众号"汪子熙":