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Compiled Stored Macros - Updating
Problem: When a compiled stored macro is updated, the catalog becomes locked until the session closes and cannot be read. Likewise, when a compiled stored macro catalog is read, it cannot be updated until the session closes.
Solution: copy the macro catalogs from/to a work space prior to reading or updating.
For example, to write the macro "test" to a macro catalog, use the following code:
* Set up the temporary catalog for writing; %macro setMacroLib; * Only define the library once, so that this code can be executed several times per session; %if %bquote(%sysfunc(pathname(MACTMP))) = %str() %then libname MACTMP "%sysfunc(pathname(WORK))";; options mstored sasmstore=MACTMP; %mend setMacroLib; %setMacroLib; * Write the macro to the temporary catalog; %macro test /store; %put This is a test of the emergency broadcast system; %mend test; * Copy the temporary catalog to a permanent location; libname MACLIB '/catalogPath'; proc catalog catalog = MACTMP.SASMACR; copy out = MACLIB.SASMACR; run;
To read the macro catalog that contains "test," use the following code:
%macro loadMacroLib; libname MACLIB '/catalogPath'; * The temporary catalog can only be defined once per session; %if %bquote(%sysfunc(pathname(MACTMP))) = %str() %then %do; * Initialize temporary location of catalog; libname MACTMP "%sysfunc(pathname(WORK))"; * Copy permanent catalog; proc copy in=MACLIB out=MACS memtype=catalog; select sasmacr; run; * Load catalog in temporary location; options mstored sasmstore=MACTMP; %end; %mend loadMacroLib; %loadMacroLib; %test;
One caveat to the above is that any time a macro catalog is updated, the session that uses the macro needs to be restarted. --Sterling Paramore 21:40, 12 May 2010 (UTC)