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- Database parameters
- alignradsensitivitywithdb
- allowunsupporteddbversion
- dbcachequery
- generateIndexDDL
- [oracle]
- [oracle_replicate]
- pgschema
- [postgresql]
- [sqlserver]
- [sqlserver_replicate]
- sqladhoccachesize
- sqlalwayson
- sqlautosort
- sqlbatchcount
- sqlcitext
- sqldb
- sqlddldirectory
- sqlddllogging
- sqldebug
- sqldictionary
- sqldictkey
- sqldicttable
- sqldirect
- sqldisconnect
- sqlfetchrows
- sqlfetchs
- sqljoinsok
- sqllibrary
- sqllimit
- sqllockretry
- sqllockwait
- sqllogin
- sqlloginretry
- sqlloginwait
- sqlnullclause
- sqlouterjoins
- sqlreuseablesql
- sqlstats
- sqltextdateformat
- sql_oracle_binary_ci
- sqltz
- sqlupper
- system_addconstraint
- system_createupperindex
- util
- wildcardcharacters
SQL parameters: sqlouterjoins
Startup parameters change the behavior of the Service Manager server. You can always set a startup parameter from the server's operating system command prompt.
Parameter
sqlouterjoins
Description
When querying two tables at the same time, Service Manager by default generates a SELECT statement with a JOIN clause to join the tables together. This parameter provides options on how two tables are joined together when being queried.
Caution: In some cases, generating a LEFT OUTER JOIN when querying two tables at the same time causes performance degradation.
Valid if set from
Server's operating system command prompt
Initialization file (sm.ini)
Requires restart of the Service Manager server?
No
Default value
2
Possible values
0 (Generates a LEFT OUTER JOIN clause only when querying a multi-row array table and one other table in the same query. Otherwise, generates just a JOIN clause.)
1 (Always generates a LEFT OUTER JOIN clause when querying two tables in the same query.)
2 (Never generates a LEFT OUTER JOIN clause; always generates just a JOIN clause.)
Example usage
Using option 2 (default) to generate a JOIN clause when querying tables M1 and A3 (SELECT * FROM M1 JOIN A3 ON...).
Command line: sm -httpPort:13080 -sqldb:dbserver -sqlouterjoins:2
Initialization file: sqlouterjoins:2
Related topics
System parameters
Enter a parameter in the sm.ini file
Database parameters