Sql Oracle中的动态查询索引
我有一个程序，根据参数建立动态where条件。如果任何参数为null，我们将忽略以在where条件中检查此列。有人能告诉我什么是索引表以获得最佳性能的最佳方法吗Sql Oracle中的动态查询索引,sql,oracle,indexing,Sql,Oracle,Indexing,我有一个程序，根据参数建立动态where条件。如果任何参数为null，我们将忽略以在where条件中检查此列。有人能告诉我什么是索引表以获得最佳性能的最佳方法吗 V_sql VARCHAR2(10000):='SELECT SV_ACC_REG.ACC_REG_ID AS ACC_REG_ID , SV_ACC_REG.PRODUCT_ID AS PRODUCT_ID , GEN_PROD
V_sql VARCHAR2(10000):='SELECT
SV_ACC_REG.ACC_REG_ID AS ACC_REG_ID ,
SV_ACC_REG.PRODUCT_ID AS PRODUCT_ID ,
GEN_PRODUCT.FULL_NAME AS PRODUCT_NAME ,
SV_ACC_REG.STATUS AS STATUS ,
SV_ACC_REG.OPENING_DATE AS OPENING_DATE ,
SV_ACC_REG.CURRENT_BALANCE AS CURRENT_BALANCE ,
SV_ACC_REG.CLOSING_DATE AS CLOSING_DATE ,
SV_ACC_REG.REG_NO AS REG_NO ,
SV_ACC_REG.IS_WITHDRAW_BY_SINGLE AS IS_WITHDRAW_BY_SINGLE,
SV_ACC_REG.IS_SINGLE AS IS_SINGLE ,
SV_ACC_REG.IS_EXTENDABLE AS IS_EXTENDABLE ,
SV_ACC_REG.REMARKS AS REMARKS ,
SV_ACC_REG.PR_NO AS PR_NO ,
SV_ACC_REG.CREATED_ON AS CREATED_ON ,
SV_ACC_REG.CREATED_BY AS CREATED_BY ,
SV_ACC_REG.UPDATED_ON AS UPDATED_ON ,
SV_ACC_REG.UPDATED_BY AS UPDATED_BY ,
SV_ACC_REG.IS_DELETED AS IS_DELETED ,
SV_ACC_REG.DELETED_ON AS DELETED_ON ,
SV_ACC_REG.DELETED_BY AS DELETED_BY ,
SV_ACC_REG.CLIENT_TYPE AS CLIENT_TYPE ,
SV_ACC_REG.IS_TRANSFER AS IS_TRANSFER ,
SV_ACC_REG.WITHDRAW_TYPE AS WITHDRAW_TYPE ,
SV_ACC_REG.DEATH_DATE AS DEATH_DATE ,
SV_ACC_REG.IS_MIGRATE AS IS_MIGRATE ,
SV_ACC_REG.MIGRATE_COMMENTS AS MIGRATE_COMMENTS ,
SV_ACC_REG.CHEQUE_HONOR_DATE AS CHEQUE_HONOR_DATE ,
SV_ACC_REG.SO_NO AS SO_NO ,
SV_ACC_REG.IS_MINOR AS IS_MINOR ,
SV_ACC_REG.NAME AS NAME ,
SV_ACC_REG.IS_OLD AS IS_OLD ,
SV_ACC_REG.IS_NO_PROFIT_CALC AS IS_NO_PROFIT_CALC ,
SV_ACC_REG.IS_SIX_M_PROFIT_CALC AS IS_SIX_M_PROFIT_CALC ,
SV_ACC_REG.IS_SEND_DPMG ,
SV_CUSTOMER_INFO.CUSTOMER_NAME AS CUSTOMER_NAME
FROM SV_ACC_REG
LEFT JOIN GEN_PRODUCT ON SV_ACC_REG.PRODUCT_ID=GEN_PRODUCT.PRODUCT_NO
LEFT JOIN SV_CUSTOMER_INFO ON SV_ACC_REG.ACC_REG_ID = SV_CUSTOMER_INFO.ACC_REG_ID';
V_WHERE VARCHAR2(500):=' WHERE ';
BEGIN
BEGIN
V_WHERE:=' WHERE ';
IF p_ACC_REG_ID IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.ACC_REG_ID = '||p_ACC_REG_ID||' AND';
END IF;
IF p_PRODUCT_ID IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.PRODUCT_ID = '||p_PRODUCT_ID||' AND';
END IF;
IF p_STATUS IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.STATUS = '||p_STATUS||' AND';
END IF;
IF p_IS_TRANSFER IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_TRANSFER = '||p_IS_TRANSFER||' AND';
END IF;
IF p_SO_NO IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.SO_NO = '||p_SO_NO||' AND';
END IF;
IF p_IS_OLD IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_OLD = '||p_IS_OLD||' AND';
END IF;
IF p_IS_SEND_DPMG IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_SEND_DPMG = '||p_IS_SEND_DPMG||' AND';
END IF;
IF p_IS_SIX_M_PROFIT_CALC IS NOT NULL THEN
V_WHERE := V_WHERE || ' IS_SIX_M_PROFIT_CALC= '||p_IS_SEND_DPMG||' AND';
END IF;
IF LENGTH(' WHERE ') =7 THEN
V_sql :=V_sql ||' ORDER BY SV_ACC_REG.ACC_REG_ID ASC';
ELSE
V_sql :=V_sql || SUBSTR(V_WHERE, 1, LENGTH(V_WHERE) - 3) ||' ORDER BY SV_ACC_REG.ACC_REG_ID ASC';
END IF;
--V_sql :=SUBSTR(V_sql, 1, LENGTH(V_sql) - 3);
--OPEN cur_OUT FOR V_sql USING p_ACC_REG_ID, p_PRODUCT_ID,p_STATUS,p_IS_TRANSFER,p_SO_NO,p_IS_OLD,p_IS_SEND_DPMG,p_IS_SIX_M_PROFIT_CALC;
OPEN cur_OUT FOR V_sql ;
END;
END;
V_sql VARCHAR2(10000):='SELECT
SV_ACC_REG.ACC_REG_ID AS ACC_REG_ID ,
SV_ACC_REG.PRODUCT_ID AS PRODUCT_ID ,
GEN_PRODUCT.FULL_NAME AS PRODUCT_NAME ,
SV_ACC_REG.STATUS AS STATUS ,
SV_ACC_REG.OPENING_DATE AS OPENING_DATE ,
SV_ACC_REG.CURRENT_BALANCE AS CURRENT_BALANCE ,
SV_ACC_REG.CLOSING_DATE AS CLOSING_DATE ,
SV_ACC_REG.REG_NO AS REG_NO ,
SV_ACC_REG.IS_WITHDRAW_BY_SINGLE AS IS_WITHDRAW_BY_SINGLE,
SV_ACC_REG.IS_SINGLE AS IS_SINGLE ,
SV_ACC_REG.IS_EXTENDABLE AS IS_EXTENDABLE ,
SV_ACC_REG.REMARKS AS REMARKS ,
SV_ACC_REG.PR_NO AS PR_NO ,
SV_ACC_REG.CREATED_ON AS CREATED_ON ,
SV_ACC_REG.CREATED_BY AS CREATED_BY ,
SV_ACC_REG.UPDATED_ON AS UPDATED_ON ,
SV_ACC_REG.UPDATED_BY AS UPDATED_BY ,
SV_ACC_REG.IS_DELETED AS IS_DELETED ,
SV_ACC_REG.DELETED_ON AS DELETED_ON ,
SV_ACC_REG.DELETED_BY AS DELETED_BY ,
SV_ACC_REG.CLIENT_TYPE AS CLIENT_TYPE ,
SV_ACC_REG.IS_TRANSFER AS IS_TRANSFER ,
SV_ACC_REG.WITHDRAW_TYPE AS WITHDRAW_TYPE ,
SV_ACC_REG.DEATH_DATE AS DEATH_DATE ,
SV_ACC_REG.IS_MIGRATE AS IS_MIGRATE ,
SV_ACC_REG.MIGRATE_COMMENTS AS MIGRATE_COMMENTS ,
SV_ACC_REG.CHEQUE_HONOR_DATE AS CHEQUE_HONOR_DATE ,
SV_ACC_REG.SO_NO AS SO_NO ,
SV_ACC_REG.IS_MINOR AS IS_MINOR ,
SV_ACC_REG.NAME AS NAME ,
SV_ACC_REG.IS_OLD AS IS_OLD ,
SV_ACC_REG.IS_NO_PROFIT_CALC AS IS_NO_PROFIT_CALC ,
SV_ACC_REG.IS_SIX_M_PROFIT_CALC AS IS_SIX_M_PROFIT_CALC ,
SV_ACC_REG.IS_SEND_DPMG ,
SV_CUSTOMER_INFO.CUSTOMER_NAME AS CUSTOMER_NAME
FROM SV_ACC_REG
LEFT JOIN GEN_PRODUCT ON SV_ACC_REG.PRODUCT_ID=GEN_PRODUCT.PRODUCT_NO
LEFT JOIN SV_CUSTOMER_INFO ON SV_ACC_REG.ACC_REG_ID = SV_CUSTOMER_INFO.ACC_REG_ID';
V_WHERE VARCHAR2(500):=' WHERE ';
BEGIN
BEGIN
V_WHERE:=' WHERE ';
IF p_ACC_REG_ID IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.ACC_REG_ID = '||p_ACC_REG_ID||' AND';
END IF;
IF p_PRODUCT_ID IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.PRODUCT_ID = '||p_PRODUCT_ID||' AND';
END IF;
IF p_STATUS IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.STATUS = '||p_STATUS||' AND';
END IF;
IF p_IS_TRANSFER IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_TRANSFER = '||p_IS_TRANSFER||' AND';
END IF;
IF p_SO_NO IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.SO_NO = '||p_SO_NO||' AND';
END IF;
IF p_IS_OLD IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_OLD = '||p_IS_OLD||' AND';
END IF;
IF p_IS_SEND_DPMG IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_SEND_DPMG = '||p_IS_SEND_DPMG||' AND';
END IF;
IF p_IS_SIX_M_PROFIT_CALC IS NOT NULL THEN
V_WHERE := V_WHERE || ' IS_SIX_M_PROFIT_CALC= '||p_IS_SEND_DPMG||' AND';
END IF;
IF LENGTH(' WHERE ') =7 THEN
V_sql :=V_sql ||' ORDER BY SV_ACC_REG.ACC_REG_ID ASC';
ELSE
V_sql :=V_sql || SUBSTR(V_WHERE, 1, LENGTH(V_WHERE) - 3) ||' ORDER BY SV_ACC_REG.ACC_REG_ID ASC';
END IF;
--V_sql :=SUBSTR(V_sql, 1, LENGTH(V_sql) - 3);
--OPEN cur_OUT FOR V_sql USING p_ACC_REG_ID, p_PRODUCT_ID,p_STATUS,p_IS_TRANSFER,p_SO_NO,p_IS_OLD,p_IS_SEND_DPMG,p_IS_SIX_M_PROFIT_CALC;
OPEN cur_OUT FOR V_sql ;
END;
END;
V_sql VARCHAR2(10000):='SELECT
SV_ACC_REG.ACC_REG_ID AS ACC_REG_ID ,
SV_ACC_REG.PRODUCT_ID AS PRODUCT_ID ,
GEN_PRODUCT.FULL_NAME AS PRODUCT_NAME ,
SV_ACC_REG.STATUS AS STATUS ,
SV_ACC_REG.OPENING_DATE AS OPENING_DATE ,
SV_ACC_REG.CURRENT_BALANCE AS CURRENT_BALANCE ,
SV_ACC_REG.CLOSING_DATE AS CLOSING_DATE ,
SV_ACC_REG.REG_NO AS REG_NO ,
SV_ACC_REG.IS_WITHDRAW_BY_SINGLE AS IS_WITHDRAW_BY_SINGLE,
SV_ACC_REG.IS_SINGLE AS IS_SINGLE ,
SV_ACC_REG.IS_EXTENDABLE AS IS_EXTENDABLE ,
SV_ACC_REG.REMARKS AS REMARKS ,
SV_ACC_REG.PR_NO AS PR_NO ,
SV_ACC_REG.CREATED_ON AS CREATED_ON ,
SV_ACC_REG.CREATED_BY AS CREATED_BY ,
SV_ACC_REG.UPDATED_ON AS UPDATED_ON ,
SV_ACC_REG.UPDATED_BY AS UPDATED_BY ,
SV_ACC_REG.IS_DELETED AS IS_DELETED ,
SV_ACC_REG.DELETED_ON AS DELETED_ON ,
SV_ACC_REG.DELETED_BY AS DELETED_BY ,
SV_ACC_REG.CLIENT_TYPE AS CLIENT_TYPE ,
SV_ACC_REG.IS_TRANSFER AS IS_TRANSFER ,
SV_ACC_REG.WITHDRAW_TYPE AS WITHDRAW_TYPE ,
SV_ACC_REG.DEATH_DATE AS DEATH_DATE ,
SV_ACC_REG.IS_MIGRATE AS IS_MIGRATE ,
SV_ACC_REG.MIGRATE_COMMENTS AS MIGRATE_COMMENTS ,
SV_ACC_REG.CHEQUE_HONOR_DATE AS CHEQUE_HONOR_DATE ,
SV_ACC_REG.SO_NO AS SO_NO ,
SV_ACC_REG.IS_MINOR AS IS_MINOR ,
SV_ACC_REG.NAME AS NAME ,
SV_ACC_REG.IS_OLD AS IS_OLD ,
SV_ACC_REG.IS_NO_PROFIT_CALC AS IS_NO_PROFIT_CALC ,
SV_ACC_REG.IS_SIX_M_PROFIT_CALC AS IS_SIX_M_PROFIT_CALC ,
SV_ACC_REG.IS_SEND_DPMG ,
SV_CUSTOMER_INFO.CUSTOMER_NAME AS CUSTOMER_NAME
FROM SV_ACC_REG
LEFT JOIN GEN_PRODUCT ON SV_ACC_REG.PRODUCT_ID=GEN_PRODUCT.PRODUCT_NO
LEFT JOIN SV_CUSTOMER_INFO ON SV_ACC_REG.ACC_REG_ID = SV_CUSTOMER_INFO.ACC_REG_ID';
V_WHERE VARCHAR2(500):=' WHERE ';
BEGIN
BEGIN
V_WHERE:=' WHERE ';
IF p_ACC_REG_ID IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.ACC_REG_ID = '||p_ACC_REG_ID||' AND';
END IF;
IF p_PRODUCT_ID IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.PRODUCT_ID = '||p_PRODUCT_ID||' AND';
END IF;
IF p_STATUS IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.STATUS = '||p_STATUS||' AND';
END IF;
IF p_IS_TRANSFER IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_TRANSFER = '||p_IS_TRANSFER||' AND';
END IF;
IF p_SO_NO IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.SO_NO = '||p_SO_NO||' AND';
END IF;
IF p_IS_OLD IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_OLD = '||p_IS_OLD||' AND';
END IF;
IF p_IS_SEND_DPMG IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_SEND_DPMG = '||p_IS_SEND_DPMG||' AND';
END IF;
IF p_IS_SIX_M_PROFIT_CALC IS NOT NULL THEN
V_WHERE := V_WHERE || ' IS_SIX_M_PROFIT_CALC= '||p_IS_SEND_DPMG||' AND';
END IF;
IF LENGTH(' WHERE ') =7 THEN
V_sql :=V_sql ||' ORDER BY SV_ACC_REG.ACC_REG_ID ASC';
ELSE
V_sql :=V_sql || SUBSTR(V_WHERE, 1, LENGTH(V_WHERE) - 3) ||' ORDER BY SV_ACC_REG.ACC_REG_ID ASC';
END IF;
--V_sql :=SUBSTR(V_sql, 1, LENGTH(V_sql) - 3);
--OPEN cur_OUT FOR V_sql USING p_ACC_REG_ID, p_PRODUCT_ID,p_STATUS,p_IS_TRANSFER,p_SO_NO,p_IS_OLD,p_IS_SEND_DPMG,p_IS_SIX_M_PROFIT_CALC;
OPEN cur_OUT FOR V_sql ;
END;
END;
select
SQL_TEXT
, SQL_FULLTEXT
, SQL_ID
, FETCHES
, EXECUTIONS
, FIRST_LOAD_TIME
, PARSE_CALLS
, DISK_READS
, BUFFER_GETS
, USER_IO_WAIT_TIME
, ROWS_PROCESSED
, OPTIMIZER_MODE
, OPTIMIZER_COST
, HASH_VALUE
, PLAN_HASH_VALUE
, CHILD_NUMBER
, CPU_TIME
, ELAPSED_TIME
, IO_INTERCONNECT_BYTES
, PHYSICAL_READ_REQUESTS
, PHYSICAL_READ_BYTES
from v$sql t
where upper(sql_text) like upper('%FROM SV_ACC_REG%LEFT JOIN GEN_PRODUCT ON SV_ACC_REG.PRODUCT_ID=GEN_PRODUCT.PRODUCT_NO%')
order by executions desc
V_sql VARCHAR2(10000):='SELECT
SV_ACC_REG.ACC_REG_ID AS ACC_REG_ID ,
SV_ACC_REG.PRODUCT_ID AS PRODUCT_ID ,
GEN_PRODUCT.FULL_NAME AS PRODUCT_NAME ,
SV_ACC_REG.STATUS AS STATUS ,
SV_ACC_REG.OPENING_DATE AS OPENING_DATE ,
SV_ACC_REG.CURRENT_BALANCE AS CURRENT_BALANCE ,
SV_ACC_REG.CLOSING_DATE AS CLOSING_DATE ,
SV_ACC_REG.REG_NO AS REG_NO ,
SV_ACC_REG.IS_WITHDRAW_BY_SINGLE AS IS_WITHDRAW_BY_SINGLE,
SV_ACC_REG.IS_SINGLE AS IS_SINGLE ,
SV_ACC_REG.IS_EXTENDABLE AS IS_EXTENDABLE ,
SV_ACC_REG.REMARKS AS REMARKS ,
SV_ACC_REG.PR_NO AS PR_NO ,
SV_ACC_REG.CREATED_ON AS CREATED_ON ,
SV_ACC_REG.CREATED_BY AS CREATED_BY ,
SV_ACC_REG.UPDATED_ON AS UPDATED_ON ,
SV_ACC_REG.UPDATED_BY AS UPDATED_BY ,
SV_ACC_REG.IS_DELETED AS IS_DELETED ,
SV_ACC_REG.DELETED_ON AS DELETED_ON ,
SV_ACC_REG.DELETED_BY AS DELETED_BY ,
SV_ACC_REG.CLIENT_TYPE AS CLIENT_TYPE ,
SV_ACC_REG.IS_TRANSFER AS IS_TRANSFER ,
SV_ACC_REG.WITHDRAW_TYPE AS WITHDRAW_TYPE ,
SV_ACC_REG.DEATH_DATE AS DEATH_DATE ,
SV_ACC_REG.IS_MIGRATE AS IS_MIGRATE ,
SV_ACC_REG.MIGRATE_COMMENTS AS MIGRATE_COMMENTS ,
SV_ACC_REG.CHEQUE_HONOR_DATE AS CHEQUE_HONOR_DATE ,
SV_ACC_REG.SO_NO AS SO_NO ,
SV_ACC_REG.IS_MINOR AS IS_MINOR ,
SV_ACC_REG.NAME AS NAME ,
SV_ACC_REG.IS_OLD AS IS_OLD ,
SV_ACC_REG.IS_NO_PROFIT_CALC AS IS_NO_PROFIT_CALC ,
SV_ACC_REG.IS_SIX_M_PROFIT_CALC AS IS_SIX_M_PROFIT_CALC ,
SV_ACC_REG.IS_SEND_DPMG ,
SV_CUSTOMER_INFO.CUSTOMER_NAME AS CUSTOMER_NAME
FROM SV_ACC_REG
LEFT JOIN GEN_PRODUCT ON SV_ACC_REG.PRODUCT_ID=GEN_PRODUCT.PRODUCT_NO
LEFT JOIN SV_CUSTOMER_INFO ON SV_ACC_REG.ACC_REG_ID = SV_CUSTOMER_INFO.ACC_REG_ID';
V_WHERE VARCHAR2(500):=' WHERE ';
BEGIN
BEGIN
V_WHERE:=' WHERE ';
IF p_ACC_REG_ID IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.ACC_REG_ID = '||p_ACC_REG_ID||' AND';
END IF;
IF p_PRODUCT_ID IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.PRODUCT_ID = '||p_PRODUCT_ID||' AND';
END IF;
IF p_STATUS IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.STATUS = '||p_STATUS||' AND';
END IF;
IF p_IS_TRANSFER IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_TRANSFER = '||p_IS_TRANSFER||' AND';
END IF;
IF p_SO_NO IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.SO_NO = '||p_SO_NO||' AND';
END IF;
IF p_IS_OLD IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_OLD = '||p_IS_OLD||' AND';
END IF;
IF p_IS_SEND_DPMG IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_SEND_DPMG = '||p_IS_SEND_DPMG||' AND';
END IF;
IF p_IS_SIX_M_PROFIT_CALC IS NOT NULL THEN
V_WHERE := V_WHERE || ' IS_SIX_M_PROFIT_CALC= '||p_IS_SEND_DPMG||' AND';
END IF;
IF LENGTH(' WHERE ') =7 THEN
V_sql :=V_sql ||' ORDER BY SV_ACC_REG.ACC_REG_ID ASC';
ELSE
V_sql :=V_sql || SUBSTR(V_WHERE, 1, LENGTH(V_WHERE) - 3) ||' ORDER BY SV_ACC_REG.ACC_REG_ID ASC';
END IF;
--V_sql :=SUBSTR(V_sql, 1, LENGTH(V_sql) - 3);
--OPEN cur_OUT FOR V_sql USING p_ACC_REG_ID, p_PRODUCT_ID,p_STATUS,p_IS_TRANSFER,p_SO_NO,p_IS_OLD,p_IS_SEND_DPMG,p_IS_SIX_M_PROFIT_CALC;
OPEN cur_OUT FOR V_sql ;
END;
END;
select
SQL_TEXT
, SQL_FULLTEXT
, SQL_ID
, FETCHES
, EXECUTIONS
, FIRST_LOAD_TIME
, PARSE_CALLS
, DISK_READS
, BUFFER_GETS
, USER_IO_WAIT_TIME
, ROWS_PROCESSED
, OPTIMIZER_MODE
, OPTIMIZER_COST
, HASH_VALUE
, PLAN_HASH_VALUE
, CHILD_NUMBER
, CPU_TIME
, ELAPSED_TIME
, IO_INTERCONNECT_BYTES
, PHYSICAL_READ_REQUESTS
, PHYSICAL_READ_BYTES
from v$sql t
where upper(sql_text) like upper('%FROM SV_ACC_REG%LEFT JOIN GEN_PRODUCT ON SV_ACC_REG.PRODUCT_ID=GEN_PRODUCT.PRODUCT_NO%')
order by executions desc
这需要一些工作，但您可能不需要非常复杂的索引结构 很长一段时间以来，Oracle一直支持对索引进行跳过扫描，此外还支持完整索引扫描和范围扫描。这可能非常强大，但尚不清楚需要哪些确切的索引
是一篇很好的博客文章，解释了什么是跳过扫描。您可能希望先放置一些低基数列，看看它对数据是否有效。这需要一些工作，但您可能不需要非常复杂的索引结构 很长一段时间以来，Oracle一直支持对索引进行跳过扫描，此外还支持完整索引扫描和范围扫描。这可能非常强大，但尚不清楚需要哪些确切的索引
是一篇很好的博客文章，解释了什么是跳过扫描。您可能希望先放置一些低基数列，看看它是否对您的数据有效。由于SQL注入的漏洞，我建议这样的解决方案
V_sql VARCHAR2(10000):='SELECT
SV_ACC_REG.ACC_REG_ID AS ACC_REG_ID ,
SV_ACC_REG.PRODUCT_ID AS PRODUCT_ID ,
GEN_PRODUCT.FULL_NAME AS PRODUCT_NAME ,
...
SV_ACC_REG.IS_OLD AS IS_OLD ,
SV_ACC_REG.IS_NO_PROFIT_CALC AS IS_NO_PROFIT_CALC ,
SV_ACC_REG.IS_SIX_M_PROFIT_CALC AS IS_SIX_M_PROFIT_CALC ,
SV_ACC_REG.IS_SEND_DPMG ,
SV_CUSTOMER_INFO.CUSTOMER_NAME AS CUSTOMER_NAME
FROM SV_ACC_REG
LEFT JOIN GEN_PRODUCT ON SV_ACC_REG.PRODUCT_ID=GEN_PRODUCT.PRODUCT_NO
LEFT JOIN SV_CUSTOMER_INFO ON SV_ACC_REG.ACC_REG_ID = SV_CUSTOMER_INFO.ACC_REG_ID';
V_WHERE VARCHAR2(500);
cur INTEGER := DBMS_SQL.OPEN_CURSOR;
curRef SYS_REFCURSOR;
ret INTEGER;
BEGIN
IF p_ACC_REG_ID IS NOT NULL THEN
V_WHERE := V_WHERE || ' AND SV_ACC_REG.ACC_REG_ID = :p_ACC_REG_ID';
END IF;
IF p_PRODUCT_ID IS NOT NULL THEN
V_WHERE := V_WHERE || ' AND SV_ACC_REG.PRODUCT_ID = :p_PRODUCT_ID';
END IF;
IF p_STATUS IS NOT NULL THEN
V_WHERE := V_WHERE || ' AND SV_ACC_REG.STATUS = :p_STATUS';
END IF;
IF p_IS_TRANSFER IS NOT NULL THEN
V_WHERE := V_WHERE || ' AND SV_ACC_REG.IS_TRANSFER = :p_IS_TRANSFER';
END IF;
IF p_SO_NO IS NOT NULL THEN
V_WHERE := V_WHERE || ' AND SV_ACC_REG.SO_NO = :p_SO_NO';
END IF;
IF p_IS_OLD IS NOT NULL THEN
V_WHERE := V_WHERE || ' AND SV_ACC_REG.IS_OLD = :p_IS_OLD';
END IF;
IF p_IS_SEND_DPMG IS NOT NULL THEN
V_WHERE := V_WHERE || ' AND SV_ACC_REG.IS_SEND_DPMG = :p_IS_SEND_DPMG';
END IF;
IF p_IS_SIX_M_PROFIT_CALC IS NOT NULL THEN
V_WHERE := V_WHERE || ' AND IS_SIX_M_PROFIT_CALC= :p_IS_SIX_M_PROFIT_CALC';
END IF;
V_WHERE := REGEXP_REPLACE(V_WHERE, '^ AND', 'WHERE');
V_sql := V_sql || V_WHERE ||' ORDER BY SV_ACC_REG.ACC_REG_ID ASC';
DBMS_SQL.PARSE(cur, V_sql, DBMS_SQL.NATIVE);
IF p_ACC_REG_ID IS NOT NULL THEN
DBMS_SQL.BIND_VARIABLE(cur, ':p_ACC_REG_ID', p_ACC_REG_ID);
END IF;
IF p_PRODUCT_ID IS NOT NULL THEN
DBMS_SQL.BIND_VARIABLE(cur, ':p_PRODUCT_ID', p_PRODUCT_ID);
END IF;
IF p_STATUS IS NOT NULL THEN
DBMS_SQL.BIND_VARIABLE(cur, ':p_STATUS', p_STATUS);
END IF;
IF p_IS_TRANSFER IS NOT NULL THEN
DBMS_SQL.BIND_VARIABLE(cur, ':p_IS_TRANSFER', p_IS_TRANSFER);
END IF;
IF p_SO_NO IS NOT NULL THEN
DBMS_SQL.BIND_VARIABLE(cur, ':p_SO_NO', p_SO_NO);
END IF;
IF p_IS_OLD IS NOT NULL THEN
DBMS_SQL.BIND_VARIABLE(cur, ':p_IS_OLD', p_IS_OLD);
END IF;
IF p_IS_SEND_DPMG IS NOT NULL THEN
DBMS_SQL.BIND_VARIABLE(cur, ':IS_SEND_DPMG', IS_SEND_DPMG);
END IF;
IF p_IS_SIX_M_PROFIT_CALC IS NOT NULL THEN
DBMS_SQL.BIND_VARIABLE(cur, ':p_IS_SIX_M_PROFIT_CALC', p_IS_SIX_M_PROFIT_CALC );
END IF;
ret := DBMS_SQL.EXECUTE(cur);
curRef := DBMS_SQL.TO_REFCURSOR(cur);
END;
该功能应该可以帮助您检测无用的索引。由于SQL注入的漏洞，我建议这样的解决方案
V_sql VARCHAR2(10000):='SELECT
SV_ACC_REG.ACC_REG_ID AS ACC_REG_ID ,
SV_ACC_REG.PRODUCT_ID AS PRODUCT_ID ,
GEN_PRODUCT.FULL_NAME AS PRODUCT_NAME ,
...
SV_ACC_REG.IS_OLD AS IS_OLD ,
SV_ACC_REG.IS_NO_PROFIT_CALC AS IS_NO_PROFIT_CALC ,
SV_ACC_REG.IS_SIX_M_PROFIT_CALC AS IS_SIX_M_PROFIT_CALC ,
SV_ACC_REG.IS_SEND_DPMG ,
SV_CUSTOMER_INFO.CUSTOMER_NAME AS CUSTOMER_NAME
FROM SV_ACC_REG
LEFT JOIN GEN_PRODUCT ON SV_ACC_REG.PRODUCT_ID=GEN_PRODUCT.PRODUCT_NO
LEFT JOIN SV_CUSTOMER_INFO ON SV_ACC_REG.ACC_REG_ID = SV_CUSTOMER_INFO.ACC_REG_ID';
V_WHERE VARCHAR2(500);
cur INTEGER := DBMS_SQL.OPEN_CURSOR;
curRef SYS_REFCURSOR;
ret INTEGER;
BEGIN
IF p_ACC_REG_ID IS NOT NULL THEN
V_WHERE := V_WHERE || ' AND SV_ACC_REG.ACC_REG_ID = :p_ACC_REG_ID';
END IF;
IF p_PRODUCT_ID IS NOT NULL THEN
V_WHERE := V_WHERE || ' AND SV_ACC_REG.PRODUCT_ID = :p_PRODUCT_ID';
END IF;
IF p_STATUS IS NOT NULL THEN
V_WHERE := V_WHERE || ' AND SV_ACC_REG.STATUS = :p_STATUS';
END IF;
IF p_IS_TRANSFER IS NOT NULL THEN
V_WHERE := V_WHERE || ' AND SV_ACC_REG.IS_TRANSFER = :p_IS_TRANSFER';
END IF;
IF p_SO_NO IS NOT NULL THEN
V_WHERE := V_WHERE || ' AND SV_ACC_REG.SO_NO = :p_SO_NO';
END IF;
IF p_IS_OLD IS NOT NULL THEN
V_WHERE := V_WHERE || ' AND SV_ACC_REG.IS_OLD = :p_IS_OLD';
END IF;
IF p_IS_SEND_DPMG IS NOT NULL THEN
V_WHERE := V_WHERE || ' AND SV_ACC_REG.IS_SEND_DPMG = :p_IS_SEND_DPMG';
END IF;
IF p_IS_SIX_M_PROFIT_CALC IS NOT NULL THEN
V_WHERE := V_WHERE || ' AND IS_SIX_M_PROFIT_CALC= :p_IS_SIX_M_PROFIT_CALC';
END IF;
V_WHERE := REGEXP_REPLACE(V_WHERE, '^ AND', 'WHERE');
V_sql := V_sql || V_WHERE ||' ORDER BY SV_ACC_REG.ACC_REG_ID ASC';
DBMS_SQL.PARSE(cur, V_sql, DBMS_SQL.NATIVE);
IF p_ACC_REG_ID IS NOT NULL THEN
DBMS_SQL.BIND_VARIABLE(cur, ':p_ACC_REG_ID', p_ACC_REG_ID);
END IF;
IF p_PRODUCT_ID IS NOT NULL THEN
DBMS_SQL.BIND_VARIABLE(cur, ':p_PRODUCT_ID', p_PRODUCT_ID);
END IF;
IF p_STATUS IS NOT NULL THEN
DBMS_SQL.BIND_VARIABLE(cur, ':p_STATUS', p_STATUS);
END IF;
IF p_IS_TRANSFER IS NOT NULL THEN
DBMS_SQL.BIND_VARIABLE(cur, ':p_IS_TRANSFER', p_IS_TRANSFER);
END IF;
IF p_SO_NO IS NOT NULL THEN
DBMS_SQL.BIND_VARIABLE(cur, ':p_SO_NO', p_SO_NO);
END IF;
IF p_IS_OLD IS NOT NULL THEN
DBMS_SQL.BIND_VARIABLE(cur, ':p_IS_OLD', p_IS_OLD);
END IF;
IF p_IS_SEND_DPMG IS NOT NULL THEN
DBMS_SQL.BIND_VARIABLE(cur, ':IS_SEND_DPMG', IS_SEND_DPMG);
END IF;
IF p_IS_SIX_M_PROFIT_CALC IS NOT NULL THEN
DBMS_SQL.BIND_VARIABLE(cur, ':p_IS_SIX_M_PROFIT_CALC', p_IS_SIX_M_PROFIT_CALC );
END IF;
ret := DBMS_SQL.EXECUTE(cur);
curRef := DBMS_SQL.TO_REFCURSOR(cur);
END;
该功能应该可以帮助您检测无用的索引。通过实验，我通过这种技术获得了更好的性能。请忽略SQL注入问题。我以后再修。如果有人有更好的想法，请加上这个
IF p_REG_NO IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.REG_NO ='''||p_REG_NO||''' AND';
END IF;
IF p_PRODUCT_ID IS NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.PRODUCT_ID IN(1,2,3,4,5,6) AND';
ELSE
V_WHERE := V_WHERE || ' SV_ACC_REG.PRODUCT_ID ='||p_PRODUCT_ID||' AND';
END IF;
IF p_STATUS IS NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.STATUS IN (0,1) AND';
ELSE
V_WHERE := V_WHERE || ' SV_ACC_REG.STATUS ='||p_STATUS||' AND';
END IF;
IF p_IS_TRANSFER IS NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_TRANSFER IN(0,1) AND';
ELSE
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_TRANSFER ='||p_IS_TRANSFER||' AND';
END IF;
IF p_SO_NO IS NULL THEN
BEGIN
--Select listagg(SO_NO,', ') within group(order by SO_NO) INTO V_List from GEN_SO;
V_WHERE := V_WHERE || ' SV_ACC_REG.SO_NO> 0 AND';
END;
ELSE
V_WHERE := V_WHERE || ' SV_ACC_REG.SO_NO ='||p_SO_NO||' AND';
END IF;
IF p_IS_OLD IS NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_OLD IN (0,1) AND';
ELSE
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_OLD ='||p_IS_OLD||' AND';
END IF;
IF p_IS_SEND_DPMG IS NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_SEND_DPMG IN(0,1) AND';
ELSE
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_SEND_DPMG ='||p_IS_SEND_DPMG||' AND';
END IF;
IF p_IS_SIX_M_PROFIT_CALC IS NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_SIX_M_PROFIT_CALC IN(0,1) ';
ELSE
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_SIX_M_PROFIT_CALC='||p_IS_SIX_M_PROFIT_CALC||' ';
END IF;
通过实验，我通过这种技术获得了更好的性能。请忽略SQL注入问题。我以后再修。如果有人有更好的想法，请加上这个
IF p_REG_NO IS NOT NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.REG_NO ='''||p_REG_NO||''' AND';
END IF;
IF p_PRODUCT_ID IS NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.PRODUCT_ID IN(1,2,3,4,5,6) AND';
ELSE
V_WHERE := V_WHERE || ' SV_ACC_REG.PRODUCT_ID ='||p_PRODUCT_ID||' AND';
END IF;
IF p_STATUS IS NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.STATUS IN (0,1) AND';
ELSE
V_WHERE := V_WHERE || ' SV_ACC_REG.STATUS ='||p_STATUS||' AND';
END IF;
IF p_IS_TRANSFER IS NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_TRANSFER IN(0,1) AND';
ELSE
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_TRANSFER ='||p_IS_TRANSFER||' AND';
END IF;
IF p_SO_NO IS NULL THEN
BEGIN
--Select listagg(SO_NO,', ') within group(order by SO_NO) INTO V_List from GEN_SO;
V_WHERE := V_WHERE || ' SV_ACC_REG.SO_NO> 0 AND';
END;
ELSE
V_WHERE := V_WHERE || ' SV_ACC_REG.SO_NO ='||p_SO_NO||' AND';
END IF;
IF p_IS_OLD IS NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_OLD IN (0,1) AND';
ELSE
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_OLD ='||p_IS_OLD||' AND';
END IF;
IF p_IS_SEND_DPMG IS NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_SEND_DPMG IN(0,1) AND';
ELSE
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_SEND_DPMG ='||p_IS_SEND_DPMG||' AND';
END IF;
IF p_IS_SIX_M_PROFIT_CALC IS NULL THEN
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_SIX_M_PROFIT_CALC IN(0,1) ';
ELSE
V_WHERE := V_WHERE || ' SV_ACC_REG.IS_SIX_M_PROFIT_CALC='||p_IS_SIX_M_PROFIT_CALC||' ';
END IF;
这里的标准方法是计算出将出现哪些列的组合，然后为每个组合构建串联索引，并避免每列有一个索引。或者，我在这方面的第一个尝试是识别标题列，希望在任何给定的组合中只出现一个标题列并对它们进行索引，然后通过向这些索引中添加辅助列来微调这些索引。WHERE子句中的列的基数是多少？我假设列是_TRANSFER或STATUS的值非常少，很可能只有2行。这个表中有多少行？@APC在SV_ACC_REG表中大约560万行。这里的标准方法是计算出将出现哪些列组合，然后为每个组合构建串联索引，并避免每列有1个索引。或者，我在这方面的第一个尝试是识别标题列，希望在任何给定的组合中只出现一个标题列并对它们进行索引，然后通过向这些索引中添加辅助列来微调这些索引。WHERE子句中的列的基数是多少？我假设列是“传输”或“状态”的值非常少，很可能只有2行。此表中有多少行？@APC在SV\u ACC\u REG表中大约560万行。可能的组合数不是2^10吗？可能的组合数不是2^10吗？