那些遇到过的问题

在PreparedStatement中设置任何参数都不起作用

use*_*964 12 java sql oracle resultset prepared-statement

我有一个像这样定义的SQL请求: 

private static final String fetchOfferQuery = "SELECT DISTINCT "
        + "sim_id, sim_code, sim_label, sim_state, sim_type, sim_customerid, sim_storeid, sim_projectnumber, sim_version, sim_type_user, sim_type_vente, sim_statut, "
        + "(SELECT MAX(set_date) FROM offer_storage.t_simulationeventtrack_set WHERE set_sim_id = sim_id) AS sim_dateevtmax, "
        + "sim_creation_user, sim_modif_user, sim_rayon, sim_hours_lifetime, sim_eligible_reduced_vat, sim_store_linked, sim_canal, "
        + "ofr_id, CAST(ofr_creationdate AS timestamp) AS ofr_creationdate, ofr_label, ofr_state, ofr_transaction, ofr_modif_date, ofr_del_valid, "
        + "ofr_numcdecli, "
        + "ofi_id, ofi_productid, ofi_quantity,ofi_productprice, ofi_top, ofi_c1promo, ofi_codeactivite, ofi_codrem, "
        + "ofi_datejour, ofi_datepose, ofi_dateprevpose, ofi_datfinc1, ofi_datfinprxvtepromo, ofi_delai, ofi_libligdtl, ofi_montantpresta, "
        + "ofi_montrt, ofi_aro_id, ofi_numartisan, ofi_prxvte, ofi_prxvtepromo, ofi_typinitialoff, ofi_typoff, ofi_c1, ofi_numlig, "
        + "deo_id, deo_numligdtl, deo_codligdtl, deo_libligdtl, "
        + "aro_id, aro_type_offer, aro_type_inioff, aro_top_caisse, aro_num_arty, aro_date_prev, aro_mntrt, aro_date_jour, "
        + "aro_delai, aro_mnt_presta, aro_codact, aro_date_pose "
        + "FROM offer_storage.t_simulation_sim "
        //with fixed date
        + "INNER JOIN offer_storage.t_simulationeventtrack_set ON set_sim_id = sim_id AND set_date >= TO_DATE('20180726000000','yyyymmddhh24miss') "
        //with bind parameter
        //+ "INNER JOIN offer_storage.t_simulationeventtrack_set ON set_sim_id = sim_id AND set_date >= ?  "
        + "LEFT JOIN offer_storage.t_offer_ofr ON ofr_sim_id = sim_id "
        + "LEFT JOIN offer_storage.t_offeritem_ofi ON ofi_ofr_id = ofr_id "
        + "LEFT JOIN offer_storage.t_details_item_offer_deo ON deo_ofi_id = ofi_id "
        + "LEFT JOIN offer_storage.t_artisan_offer_aro ON aro_id = ofi_aro_id "
        + "ORDER BY sim_id, ofr_id, ofi_id, deo_id, aro_id";
Run Code Online (Sandbox Code Playgroud)

如果我在请求中设置了固定日期: 

...
            + "INNER JOIN offer_storage.t_simulationeventtrack_set ON set_sim_id = sim_id AND set_date >= TO_DATE('20180726000000','yyyymmddhh24miss') "
        ...
Run Code Online (Sandbox Code Playgroud)

并使用以下命令播放请求:simulationsSt = connection.prepareStatement(fetchOfferQuery); ResultSet simulationsRs = simulationsSt.executeQuery();

请求需要1分30秒才能结束.

如果我使用bind参数: 

        ...
        + "INNER JOIN offer_storage.t_simulationeventtrack_set ON set_sim_id = sim_id AND set_date >= ?  "
        ...
Run Code Online (Sandbox Code Playgroud)

使用executeQuery之前的set方法(dateLastExtract = 20180726000000的相同日期): 

        simulationsSt.setTimestamp(1, new Timestamp(this.dateLastExtract.getTime()));
Run Code Online (Sandbox Code Playgroud)

请求需要10分钟!

我还需要设置任何param(int,date,string ...等)的所有请求.所以它不是特定的日期,它只是当我使用绑定时,而我不是.

有关信息,数据行的数量非常巨大: 

t_simulationeventtrack_set : 66.097.939 rows    
t_details_item_offer_deo : 46.259.704 rows    
t_offeritem_ofi : 14.232.150 rows    
t_artisan_offer_aro : 2.317.658 rows    
t_offer_ofr : 1.801.969 rows    
t_simulation_sim : 1.756.235 rows
Run Code Online (Sandbox Code Playgroud)

CREATE TABLE t_simulationeventtrack_set脚本是: 

CREATE TABLE "OFFER_STORAGE"."T_SIMULATIONEVENTTRACK_SET" 
   (    "SET_ID" NUMBER(*,0) NOT NULL ENABLE, 
    "SET_DATE" DATE, 
    "SET_CHANGETYPE" VARCHAR2(254 BYTE), 
    "SET_CHANGE" VARCHAR2(254 BYTE), 
    "SET_USR_ID" NUMBER(*,0), 
    "SET_SIM_ID" NUMBER(*,0), 
     CONSTRAINT "PK_SIMULATIONEVENTTRACK" PRIMARY KEY ("SET_ID")
  USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS 
  STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1
  BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
  TABLESPACE "OAA_INDX"  ENABLE
   ) SEGMENT CREATION IMMEDIATE 
  PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 
 NOCOMPRESS LOGGING
  STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1
  BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
  TABLESPACE "OAA_DATA" ;

  CREATE INDEX "OFFER_STORAGE"."IDX_SET_SIM_ID" ON "OFFER_STORAGE"."T_SIMULATIONEVENTTRACK_SET" ("SET_SIM_ID") 
  PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS 
  STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1
  BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
  TABLESPACE "OAA_INDX" ;

  CREATE INDEX "OFFER_STORAGE"."IDX_SIMULATIONEVENTTRACK_DATE" ON "OFFER_STORAGE"."T_SIMULATIONEVENTTRACK_SET" ("SET_DATE") 
  PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS 
  STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1
  BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
  TABLESPACE "OAA_INDX" ;

  CREATE INDEX "OFFER_STORAGE"."IDX_SIMULATIONEVENTTRACK_FDATE" ON "OFFER_STORAGE"."T_SIMULATIONEVENTTRACK_SET" (TO_CHAR("SET_DATE",'YYYY-MM-DD')) 
  PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS 
  STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1
  BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
  TABLESPACE "OAA_INDX" ;

  CREATE INDEX "OFFER_STORAGE"."IDX_SIM_ID_USER_ID" ON "OFFER_STORAGE"."T_SIMULATIONEVENTTRACK_SET" ("SET_SIM_ID", "SET_USR_ID") 
  PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS 
  STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1
  BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
  TABLESPACE "OAA_INDX" ;
Run Code Online (Sandbox Code Playgroud)

怎么了 ？

我试图在"T_SIMULATIONEVENTTRACK_SET"("SET_SIM_ID","SET_DATE")上添加索引但是它没有改变任何东西.

编辑:

我在这里找到了日期参数的解决方案:https: //blog.jooq.org/2014/12/22/are-you-binding-your-oracle-dates-correctly-i-bet-you-arent/

如果我使用"CAST(？AS DATE)"代替"？",它的工作速度很快!

但是现在我对整数参数有同样的问题.我有一个条款"> = CAST(？AS DATE)或1 =？" 第二个参数是1或0,如果我把0,它将采取每一行甚至旧的.

当我把这个简单的int参数放进去时,它又慢了......

编辑2:

这是带绑定的执行计划: 

--------------------------------------------------------------------------------------------------------------------
| Id  | Operation                    | Name                        | Rows  | Bytes |TempSpc| Cost (%CPU)| Time     |
--------------------------------------------------------------------------------------------------------------------
|   0 | SELECT STATEMENT             |                             |       |       |       |   191M(100)|          |
|   1 |  SORT AGGREGATE              |                             |     1 |    14 |       |            |          |
|   2 |   FIRST ROW                  |                             |     1 |    14 |       |     4   (0)| 00:00:01 |
|   3 |    INDEX RANGE SCAN (MIN/MAX)| IDX_SIMULATIONEVENTTRACK_SD |     1 |    14 |       |     4   (0)| 00:00:01 |
|   4 |  SORT ORDER BY               |                             |    26 |  9698 |    17G|   191M  (1)|637:07:31 |
|   5 |   FILTER                     |                             |       |       |       |            |          |
|   6 |    HASH JOIN RIGHT OUTER     |                             |    46M|    16G|  3351M|   915K  (1)| 03:03:10 |
|   7 |     TABLE ACCESS FULL        | T_DETAILS_ITEM_OFFER_DEO    |    46M|  2815M|       |   145K  (1)| 00:29:01 |
|   8 |     HASH JOIN RIGHT OUTER    |                             |    14M|  4263M|   134M|   384K  (1)| 01:16:57 |
|   9 |      TABLE ACCESS FULL       | T_ARTISAN_OFFER_ARO         |  2317K|   108M|       |  4543   (1)| 00:00:55 |
|  10 |      HASH JOIN OUTER         |                             |    14M|  3589M|   325M|   187K  (1)| 00:37:28 |
|  11 |       HASH JOIN RIGHT OUTER  |                             |  1823K|   304M|   125M| 35194   (1)| 00:07:03 |
|  12 |        TABLE ACCESS FULL     | T_OFFER_OFR                 |  1824K|   104M|       |  5995   (1)| 00:01:12 |
|  13 |        TABLE ACCESS FULL     | T_SIMULATION_SIM            |  1778K|   195M|       | 12293   (1)| 00:02:28 |
|  14 |       TABLE ACCESS FULL      | T_OFFERITEM_OFI             |    14M|  1183M|       | 69005   (1)| 00:13:49 |
|  15 |    INDEX RANGE SCAN          | IDX_SIMULATIONEVENTTRACK_SD |     1 |    14 |       |     4   (0)| 00:00:01 |
|  16 |    INDEX RANGE SCAN          | IDX_SET_SIM_ID              |     2 |    12 |       |     3   (0)| 00:00:01 |
--------------------------------------------------------------------------------------------------------------------
Run Code Online (Sandbox Code Playgroud)

并且执行计划没有绑定(更快): 

-----------------------------------------------------------------------------------------------------------------------------
| Id  | Operation                           | Name                          | Rows  | Bytes |TempSpc| Cost (%CPU)| Time     |
-----------------------------------------------------------------------------------------------------------------------------
|   0 | SELECT STATEMENT                    |                               |       |       |       |   163K(100)|          |
|   1 |  SORT AGGREGATE                     |                               |     1 |    14 |       |            |          |
|   2 |   FIRST ROW                         |                               |     1 |    14 |       |     4   (0)| 00:00:01 |
|   3 |    INDEX RANGE SCAN (MIN/MAX)       | IDX_SIMULATIONEVENTTRACK_SD   |     1 |    14 |       |     4   (0)| 00:00:01 |
|   4 |  SORT ORDER BY                      |                               |   156K|    57M|    60M|   163K  (1)| 00:32:41 |
|   5 |   NESTED LOOPS OUTER                |                               |   156K|    57M|       |   150K  (1)| 00:30:07 |
|   6 |    NESTED LOOPS OUTER               |                               | 48049 |    14M|       | 40080   (1)| 00:08:01 |
|   7 |     NESTED LOOPS OUTER              |                               | 48049 |    12M|       | 35935   (1)| 00:07:12 |
|   8 |      HASH JOIN OUTER                |                               |  6085 |  1123K|       | 12654   (1)| 00:02:32 |
|   9 |       NESTED LOOPS                  |                               |       |       |       |            |          |
|  10 |        NESTED LOOPS                 |                               |  5930 |   747K|       |  6654   (1)| 00:01:20 |
|  11 |         SORT UNIQUE                 |                               |  6008 | 84112 |       |   643   (0)| 00:00:08 |
|  12 |          TABLE ACCESS BY INDEX ROWID| T_SIMULATIONEVENTTRACK_SET    |  6008 | 84112 |       |   643   (0)| 00:00:08 |
|  13 |           INDEX RANGE SCAN          | IDX_SIMULATIONEVENTTRACK_DATE |  6008 |       |       |    20   (0)| 00:00:01 |
|  14 |         INDEX UNIQUE SCAN           | PK_SIMULATION                 |     1 |       |       |     1   (0)| 00:00:01 |
|  15 |        TABLE ACCESS BY INDEX ROWID  | T_SIMULATION_SIM              |     1 |   115 |       |     2   (0)| 00:00:01 |
|  16 |       TABLE ACCESS FULL             | T_OFFER_OFR                   |  1779K|   101M|       |  5994   (1)| 00:01:12 |
|  17 |      TABLE ACCESS BY INDEX ROWID    | T_OFFERITEM_OFI               |     8 |   688 |       |     4   (0)| 00:00:01 |
|  18 |       INDEX RANGE SCAN              | IDX_OFI_OFR_ID                |     9 |       |       |     2   (0)| 00:00:01 |
|  19 |     TABLE ACCESS BY INDEX ROWID     | T_ARTISAN_OFFER_ARO           |     1 |    49 |       |     2   (0)| 00:00:01 |
|  20 |      INDEX UNIQUE SCAN              | PK_ARTISANOFFER               |     1 |       |       |     1   (0)| 00:00:01 |
|  21 |    TABLE ACCESS BY INDEX ROWID      | T_DETAILS_ITEM_OFFER_DEO      |     3 |   189 |       |     4   (0)| 00:00:01 |
|  22 |     INDEX RANGE SCAN                | IDX_DEO_OFI_ID                |    22 |       |       |     2   (0)| 00:00:01 |
-----------------------------------------------------------------------------------------------------------------------------
Run Code Online (Sandbox Code Playgroud)

谢谢

Joo*_*gen 3

SQL 引擎似乎消除了像X OR 1=0to这样的常量表达式X。对于动态准备的表达式则不然，未能在set_date.

该条件的目的是禁用 上的过滤set_date，适用于所有set_date值。

如果可行的话，您可以通过替换来做到这一点

        + "AND (set_date >= TO_DATE('2018-07-19', 'YYYY-MM-DD') "
        + "OR 1 = ?) "
Run Code Online (Sandbox Code Playgroud)

和

        + "AND set_date >= ? "
Run Code Online (Sandbox Code Playgroud)

和

       LocalDate d = seen == 1 ? LocalDate.of(1900, 1, 1) : LocalDate.of(2018, 7, 19);
       java.sql.Date sd = new java.sql.Date(d.toEpochDay);
       simulationsSt.setDate(1, sd);
Run Code Online (Sandbox Code Playgroud)

归档时间：

查看次数：

355 次

最近记录：

7 年，2 月 前
相关归档
聚合与组合 86
如何在毫秒的时间内在SQL Server中打印GETDATE()？ 85
如何在MACOS上将Java从9降级到8.Eclipse没有运行Java 9 84
有没有办法确保在DISTINCT之后发生WHERE子句？ 25
sql如何工作？ 19
Oracle上的条件SUM 9
SQL - NOT IN内部的查询需要比完整查询更长的时间吗？ 5
如何将数据库更改部署到Live Server？ 5
二进制面具oracle 3
为什么“describe”命令在 Oracle 12c 的 Netbeans 中不起作用 3
难疑归档
撤消尚未推送的Git合并 3695
如何按值对字典进行排序？ 3424
什么是依赖注入？ 2984
在Python中查找包含它的列表的项目的索引 2887
如何在Linux中对文件进行符号链接？ 1865
Bower和npm有什么区别？ 1723
如何检查iOS或macOS上的活动Internet连接？ 1309
如何刷新打印功能的输出？ 1111
如何按值排序多维数组？ 1058
什么是首选的Bash shebang？ 1051