数据库会自动创建以下内容:
创建索引,
ARG_I2
EXP_DIAG_DAT_I1
OBJ_I2
OPR_I2
PRD_I2
STMT_I2
STM_I2
表:
EXPLAIN_ACTUALS
EXPLAIN_ARGUMENT
EXPLAIN_DIAGNOSTIC
EXPLAIN_DIAGNOSTIC_DATA
EXPLAIN_INSTANCE
EXPLAIN_OBJECT
EXPLAIN_OPERATOR
EXPLAIN_PREDICATE
EXPLAIN_STATEMENT
EXPLAIN_STREAM
函数(EXPLAIN_GET_MSGS)
在执行sql,前面添加explain PLAN FOR 可以测试