Micro Focus Enterprise Developer 3.0 for Eclipse > Programming > Mainframe Programming > AppMaster Builder > Reference > Database Calls > DB-FETCH

DB-FETCH

DB-FETCH sequentially retrieves rows from the cursor set defined by DB-DECLARE. When you define a cursor set with DB-DECLARE, SQL places the selected rows in a results table, or cursor set. DB-FETCH retrieves these rows. Each DB-FETCH returns the next row of the cursor set until the end of the results table is reached.

Restriction: This topic applies only when the AppMaster Builder AddPack has been installed, and applies only to Windows platforms.

Target:

SQL

Syntax:

DB-FETCH CUR[SOR] cursorname
... [SENSITIVE|INSENSITIVE]
... [ABSOLUTE number|RELATIVE number|CURRENT|FIRST|LAST|NEXT|PREVIOUS|PRIOR]
... [NEXT ROWSET | FIRST ROWSET  | PRIOR ROWSET |
... CURRENT ROWSET | LAST ROWSET |
... ROWSET STARTING AT {ABSOLUTE number | RELATIVE number}] 
... [FOR number ROWS]
... [INTO dataname]

General Rules:

The row returned by the current iteration of DB-FETCH is the current row.
You can code DB-FETCH within an S-COBOL loop to retrieve multiple rows from a cursor set.
To FETCH into individual columns, specify those alternate host variables in DB-DECLARE.
When using ROWSET operations, set up host-variable array structures to receive multiple values for each column.

AMB creates default array structures for records that specify multiple-row fetches or entire-row, multiple-row inserts. The array size is the maximum row number value found specified in the FOR number ROWS clause for that table. For example:

01   recordname-ARR.
     05  CobolHostVar1-ARR     picture occurs row-number times.
     05  IND-CobolHostVar1-ARR picture occurs row-number times.
     05  CobolHostVar2-ARR     picture occurs row-number times.
     05  IND-CobolHostVar2-ARR picture occurs row-number times.
     …..
     05  CobolHostVarn-ARR     picture occurs row-number times.
     05  IND-CobolHostVarn-ARR picture occurs row-number times.

Parameters:

CUR[SOR] `cursorname`	Specify cursor. `Cursorname` must be previously named by DB-DECLARE or DB-PROCESS-ID.
ABSOLUTE `number` RELATIVE `number` CURRENT FIRST LAST NEXT PREVIOUS PRIOR	Cursor positioning keywords. NEXT is the default.
INTO `dataname`	Move host variable structure into the alternate data structure data name. Data moves after the actual SQL call via a MOVE statement. Generated code isIF OK-ON-RECMOVE `hostname` TO `dataname`
SENSITIVE	Reflects changes made outside of this cursor.
INSENSITIVE	Returns rows from the result table as is.
NEXT ROWSET FIRST ROWSET PRIOR ROWSET CURRENT ROWSET LAST ROWSET ROWSET STARTING AT ABSOLUTE `number` RELATIVE `number`	Rowset positioning keywords. NEXT ROWSET is the default.
FOR `number` ROWS	Controls how many rows are returned on each FETCH.

Example:

Retrieve columns and rows in cursor set D2MAST-CURSOR; place information into WS-D2MAST-RECORD in Working-Storage.

DB-FETCH CURSOR D2MAST-CURSOR
... INTO WS-D2MAST-RECORD