摘要:
创建Table -- DROP TABLE TEST_TABLE; CREATE TABLE TEST_TABLE ( ROWUID VARCHAR2(255 BYTE) , USERID VARCHAR2(225 BYTE) , USERNAME VARCHAR2(255 BYTE) , MAIL 阅读全文
摘要:
DbLink查询性能优化: DRIVING_SITE SELECT /*+ DRIVING_SITE(departments) */ FROM employees, departments@rsite WHERE employees.department_id = departments.depar 阅读全文