How do you read a table using the key?

How do you read a table using the key?

READ TABLE – table_key – ABAP Keyword Documentation. Specifying a Table Key as a Search Key Either the primary table key or a secondary table key can be specified. The values can be declared either implicitly in a work area wa behind FROM or by listing the components of the table key explicitly behind TABLE KEY.

What is the use of Sy-Tabix in ABAP?

Sy-tabix is used to find the current line in the internal table; it’s a current line index. Whereas sy-index in used to find the number of current pass in the loop statement.

How do you read data from database table in SAP ABAP?

Usually, in ABAP you use OpenSql statements to retrieve the data. OpenSql statements are similar to normal SQL statements. In case you need to use the function module on a remote system, then you need to use remote function calls like RFC_READ_TABLE.

How do I read a table in SAP?

1. READ TABLE itab.
2. Syntax.
3. READ TABLE itab { table_key. | free_key. | index } result.
4. Effect.
5. System Fields.
6. Notes.
7. Example.
8. DATA itab TYPE STANDARD TABLE OF i. WITH EMPTY KEY. WITH NON-UNIQUE SORTED KEY sort_key COMPONENTS table_line. itab = VALUE #( ( 2 ) ( 5 ) ( 1 ) ( 3 ) ( 4 ) ). DATA(output) = “. DATA(idx) = lines( itab ).

Why do we use read table in SAP ABAP?

The READ statement reads the line of the table after comparing the value of the ColP key field with the value in the Record1 work area by using the COMPARING clause, and then copies the content of the read line in the work area.

How do you read a table with field symbols?

You can assign the table entry read from the table to a field symbol by specifying result as follows: READ TABLE itab key ASSIGNING <fs>. After the READ statement, the field symbol points to the table line. If the line type is structured, you should specify the same type for the field symbol when you declare it.

What is the meaning of Sy-Subrc 0?

statement was executed successfully

Values of SY-SUBRC on different ABAP statements. ‘sy-subrc’ is a return code, set by the following ABAP statements. As a rule, if SY-SUBRC = 0, the statement was executed successfully.

What is the difference between loop and read in SAP ABAP?

LOOP: looop will read each and evry record in the inetrnal table. READ : statement will read only single record at at time and not more than that. Read statement will return Sy-subrc value.

What is the difference between with key and with table key in SAP ABAP?

For the binary search, the table must be sorted by the specified search key in ascending/descending order. Otherwise the search will not find the correct row. When normal linear search is used and no field contained in the keys then WITH KEY is used.

What is read table in ABAP?

How can we retrieve data from internal table?

ABAP NW 7.52 has come up with new syntax to select the data directly from the internal table as a data source. There is no need to use FOR ALL ENTRIES or split up into multiple select statements. New syntax will select the data from an internal table rather than a database table as a data source.

How do you write a read table?

The syntax for READ TABLE is as follows. In READ TABLE statement we need to specify either INDEX or KEY but not both at the same time. If we want to read the third row from the internal table, then specify the index as 3 in the INDEX clause of the READ statement. Index is a relative row number of the internal table.

How do you read a table with field symbols in SAP ABAP?

How do you pass data from field symbol to internal table?

You can get the structure of the internal table using the following code : type-pools : abap. field-symbols: <dyn_table> type table, <dyn_wa>, <dyn_field>. data: dy_table type ref to data, dy_line type ref to data, xfc type lvc_s_fcat, ifc type lvc_t_fcat.

What does Sy-Subrc 4 mean?

If SY-SUBRC is 0, the ABAP statement has been executed successfully. If the value is different from 0, than the statement has raised an error or warning. Usually 4 means error and 8 means warning, but this is not obligatory.

What is the difference between Sy Tabix and Sy index?

Both are meant for index values only. But the Sy-tabix is used when you loop an internal table and the Sy-index can be used in case of Do/while loops.

Can we have loop inside loop in ABAP?

Traditionally in ABAP, we use the LOOP using the WHERE clause for Nested loops. This type of nested loops are very common in our day-to-day programming. But, the cost, in terms of performance, is higher when we use the nested loops.

How read multiple lines from internal table in ABAP?

* Get the table index from which to loop READ TABLE IT2 TRANSPORTING NO FIELDS WITH KEY F1 = IT1-F1 BINARY SEARACH. IF SY-SUBRC = 0. LV_INDX = SY-TABIX. LOOP AT IT2 FROM LV_INDX.

Can we SELECT from internal table in SAP ABAP?

Why do we use SY-Subrc in SAP ABAP?

It is an integer value like 0, 4, 8 or other. This value is used to determine the status of the execution of an ABAP statement. If SY-SUBRC is 0, the ABAP statement has been executed successfully. If the value is different from 0, than the statement has raised an error or warning.

How do I move data from field symbol to variable?

data: x type c value 1, y type c. assign x to <fs>. Now want to move <fs> value into variable y.

How move data from field symbols to internal table in SAP ABAP?

What is Sy Tabix?

sy-tabix = Index of Internal Tables. set by commands processing internal tables (e.g. READ, LOOP) It contains the nr/index of the last line accessed for standard or sorted tables. In case of hashed tables it is set to 0. since hashed tables are no index tables, they use a hash administration.

What does Sy-Subrc <> 0 mean?

What is difference between table and structure in SAP?

A table is a table that has been created in the database. A structure is just a list of fields defined under a name. Structures are useful for painting screen fields, and for manipulating data that has a consistent format defined by a discrete number of fields. There is no content to view in a structure.