Code Differences in Locking procedure.

Locking Differences in the Code

A typical use of LOCKTABLE(TRUE,TRUE) in Classic Database Server is shown in the first of the following examples. The equivalent code for the SQL Server Option is shown in the second example. The code that works on both servers is shown in the third example. The RECORDLEVELLOCKING property is used to detect whether record level locking is being used. If this is the case, then you are using the SQL Server Option for Microsoft Dynamics NAV. This is currently the only server that supports record level locking.

Classic Database Server

Example 1

IF Rec.FIND('-') THEN

REPEAT
UNTIL Rec.NEXT = 0;
Rec.LOCKTABLE(TRUE,TRUE);
IF Rec.FIND('-') THEN
REPEAT
Rec.MODIFY;
UNTIL Rec.NEXT = 0;

SQL Server

Example 2

Rec.LOCKTABLE;
IF Rec.FIND('-') THEN
REPEAT
UNTIL Rec.NEXT = 0;
IF Rec.FIND('-') THEN
REPEAT
Rec.MODIFY;
UNTIL Rec.NEXT = 0;

Both Server Types

Example 3

IF Rec.RECORDLEVELLOCKING THEN

Rec.LOCKTABLE;
IF Rec.FIND('-') THEN
REPEAT
UNTIL Rec.NEXT = 0;
IF NOT Rec.RECORDLEVELLOCKING THEN
Rec.LOCKTABLE(TRUE,TRUE);
IF Rec.FIND('-') THEN
REPEAT
Rec.MODIFY;
UNTIL Rec.NEXT = 0;