update a problem about oracle

Author: qiujunlin

APIJSONORM/src/main/java/apijson/orm/AbstractSQLConfig.java

@@ -2685,7 +2685,7 @@ public static String getSQL(AbstractSQLConfig config) throws Exception {
 			String column = config.getColumnString();
 			if (config.isOracle()) {
 				//When config's database is oracle,Using subquery since Oracle12 below does not support OFFSET FETCH paging syntax.
-				return explain + "SELECT * FROM (SELECT"+ (config.getCache() == JSONRequest.CACHE_RAM ? "SQL_NO_CACHE " : "") + column + " FROM " + getConditionString(column, tablePath, config) + ") " + config.getLimitString();
+				return explain + "SELECT * FROM (SELECT "+ (config.getCache() == JSONRequest.CACHE_RAM ? "SQL_NO_CACHE " : "") + column + " FROM " + getConditionString(column, tablePath, config) + ") " + config.getLimitString();
 			}
 
 			return explain + "SELECT " + (config.getCache() == JSONRequest.CACHE_RAM ? "SQL_NO_CACHE " : "") + column + " FROM " + getConditionString(column, tablePath, config) + config.getLimitString();