4D v16.3

READ ONLY

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4D v16.3
READ ONLY

READ ONLY 


 

READ ONLY {( aTable | * )} 
Parameter Type   Description
aTable | *  Table, Operator in Table for which to set read-only state, or * for all the tables, or Default table, if omitted

READ ONLY changes the state of aTable to read-only for the process in which it is called. All subsequent records that are loaded are locked, and you cannot make any changes made to them. If the optional * parameter is specified, all tables are changed to read-only state.

Use READ ONLY when you do not need to modify the record or records.

Note: This command is not retroactive. A record is loaded according to the table’s read/write status at the time of loading. To load a record from a read/write table in read-only mode, you must first change the table state to read-only.



See also 

Read only state
READ WRITE
Record Locking

 
PROPERTIES 

Product: 4D
Theme: Record Locking
Number: 145

This command can be run in preemptive processes

 
HISTORY 

Created: < 4D v6

 
ARTICLE USAGE

4D Language Reference ( 4D v16)
4D Language Reference ( 4D v16.1)
4D Language Reference ( 4D v16.2)
4D Language Reference ( 4D v16.3)