jOOq替換爲DSL.fieldByName

我碰巧有一個非常有趣的查詢和問題。我們運行的是Oracle 12c（從一年前的11g開始），最近剛剛從jOOq 3.4.x遷移到3.7.3，我不想使用現在不推薦使用的DSL.fieldByName，但是我很難找到真正的喜歡從DSL.field選項更換。下面是3.4.x生成的查詢（被遮住了安全模式名和表名）：jOOq替換爲DSL.fieldByName

select 
    "v0" "pTitle", 
    "v1" "pCode", 
    "v2" "description", 
    "v3" "coid", 
    "v4" "viewCount", 
    "v5" "fileId", 
    "v6" "displayPos" 
from (
    select 
    "x"."v0", 
    "x"."v1", 
    "x"."v2", 
    "x"."v3", 
    "x"."v4", 
    "x"."v5", 
    "x"."v6", 
    rownum "rn" 
    from (
    select 
     "pTitle" "v0", 
     "pCode" "v1", 
     "description" "v2", 
     "coid" "v3", 
     "viewCount" "v4", 
     "fileId" "v5", 
     rownum "v6" 
    from (
     select 
     "SCHEMA_A"."LIBRARY"."TITLE" "pTitle", 
     "LibraryType"."CODE" "pCode", 
     "SCHEMA_A"."LIBRARY"."DESCRIPTION" "description", 
     "SCHEMA_A"."AC_ASSOC_TABLE"."OBJECT_ID" "coid", 
     "SCHEMA_A"."AC_ASSOC_TABLE"."VIEW_COUNT" "viewCount", 
     "SCHEMA_A"."FILES"."FILE_ID" "fileId", 
     row_number() over (partition by "SCHEMA_A"."AC_ASSOC_TABLE"."OBJECT_ID" order by "SCHEMA_A"."FILES"."FILE_ID" desc nulls last) "maxFileId" 
     from "SCHEMA_A"."AC_ASSOC_TABLE" 
     join (
      "SCHEMA_A"."LKU_CODE" 
      join "SCHEMA_A"."LKU_CODE_TYPE" 
      on (
       "SCHEMA_A"."LKU_CODE"."LKU_CODE_TYPE_ID" = "SCHEMA_A"."LKU_CODE_TYPE"."LKU_CODE_TYPE_ID" 
       and "SCHEMA_A"."LKU_CODE_TYPE"."CODE_TYPE" = 'OBJECT_TYPE' 
      ) 
     ) 
     on (
      "SCHEMA_A"."AC_ASSOC_TABLE"."OBJECT_TYPE_ID" = "SCHEMA_A"."LKU_CODE"."LKU_CODE_ID" 
      and "SCHEMA_A"."LKU_CODE"."CODE" = 'PORTFOLIOS' 
     ) 
     join "SCHEMA_A"."AC_RELEASE_TYPE" 
     on (
      "SCHEMA_A"."AC_RELEASE_TYPE"."AC_OBJECT_ID" = "SCHEMA_A"."AC_ASSOC_TABLE"."AC_OBJECT_ID" 
      and "SCHEMA_A"."AC_RELEASE_TYPE"."SECTION" = 1 
      and "SCHEMA_A"."AC_RELEASE_TYPE"."RELEASE_TYPE" in (
      6, 7 
     ) 
     ) 
     join "SCHEMA_A"."AC_SENSITIVITIES" 
     on (
      "SCHEMA_A"."AC_SENSITIVITIES"."AC_OBJECT_ID" = "SCHEMA_A"."AC_ASSOC_TABLE"."AC_OBJECT_ID" 
      and "SCHEMA_A"."AC_SENSITIVITIES"."SECTION" = 0 
     ) 
     join "SCHEMA_A"."USERS" 
     on (
      bitand(
      "SCHEMA_A"."AC_SENSITIVITIES"."SENSITIVITIES", 
      "SCHEMA_A"."USERS"."SENSITIVITIES") = "SCHEMA_A"."AC_SENSITIVITIES"."SENSITIVITIES" 
      and "SCHEMA_A"."USERS"."USER_ID" = 456920 
     ) 
     join (
      "SCHEMA_A"."LIBRARY" 
      join (
       "SCHEMA_A"."LKU_CODE" 
       join "SCHEMA_A"."LKU_CODE_TYPE" 
       on (
        "SCHEMA_A"."LKU_CODE"."LKU_CODE_TYPE_ID" = "SCHEMA_A"."LKU_CODE_TYPE"."LKU_CODE_TYPE_ID" 
        and "SCHEMA_A"."LKU_CODE_TYPE"."CODE_TYPE" = 'STATUS' 
       ) 
      ) 
      on (
       "SCHEMA_A"."LIBRARY"."LIBRARY_STATUS_ID" = "SCHEMA_A"."LKU_CODE"."LKU_CODE_ID" 
       and "SCHEMA_A"."LKU_CODE"."CODE" = 'ACTIVE' 
      ) 
      join (
       "SCHEMA_A"."LKU_CODE" "LibraryType" 
       join "SCHEMA_A"."LKU_CODE_TYPE" 
       on (
        "LibraryType"."LKU_CODE_TYPE_ID" = "SCHEMA_A"."LKU_CODE_TYPE"."LKU_CODE_TYPE_ID" 
        and "SCHEMA_A"."LKU_CODE_TYPE"."CODE_TYPE" = 'PORTFOLIO_TYPE' 
       ) 
      ) 
      on (
       "SCHEMA_A"."LIBRARY"."PORTFOLIO_TYPE_ID" = "LibraryType"."LKU_CODE_ID" 
       and "LibraryType"."CODE" in (
       'ELEMENT', 'PROJECT', 'PROGRAM' 
      ) 
      ) 
      join (
       "SCHEMA_A"."LKU_CODE" 
       join "SCHEMA_A"."LKU_CODE_TYPE" 
       on (
        "SCHEMA_A"."LKU_CODE"."LKU_CODE_TYPE_ID" = "SCHEMA_A"."LKU_CODE_TYPE"."LKU_CODE_TYPE_ID" 
        and "SCHEMA_A"."LKU_CODE_TYPE"."CODE_TYPE" = 'ACTIVITY_TYPE' 
       ) 
      ) 
      on (
       "SCHEMA_A"."LIBRARY"."ACTIVITY_TYPE_ID" = "SCHEMA_A"."LKU_CODE"."LKU_CODE_ID" 
       and "SCHEMA_A"."LKU_CODE"."CODE" in (
       'MISSION_WITH_TECHNOLOGY', 'TECHNOLOGY_ONLY' 
      ) 
      ) 
     ) 
     on "SCHEMA_A"."LIBRARY"."LIBRARY_ID" = "SCHEMA_A"."AC_ASSOC_TABLE"."OBJECT_ID" 
     left outer join (
      "SCHEMA_A"."LIBRARY_ITEMS" 
      join "SCHEMA_A"."FILES" 
      on "SCHEMA_A"."LIBRARY_ITEMS"."LIBRARY_ITEM_ID" = "SCHEMA_A"."FILES"."PARENT_OBJECT_ID" 
      join (
       "SCHEMA_A"."LKU_CODE" 
       join "SCHEMA_A"."LKU_CODE_TYPE" 
       on (
        "SCHEMA_A"."LKU_CODE"."LKU_CODE_TYPE_ID" = "SCHEMA_A"."LKU_CODE_TYPE"."LKU_CODE_TYPE_ID" 
        and "SCHEMA_A"."LKU_CODE_TYPE"."CODE_TYPE" = 'LIBRARY_ITEM_TYPE' 
       ) 
      ) 
      on (
       "SCHEMA_A"."LIBRARY_ITEMS"."LIBRARY_ITEM_TYPE_ID" = "SCHEMA_A"."LKU_CODE"."LKU_CODE_ID" 
       and "SCHEMA_A"."LKU_CODE"."CODE" = 'OBJECT_IMAGE' 
      ) 
     ) 
     on (
      "SCHEMA_A"."LIBRARY_ITEMS"."LIBRARY_ID" = "SCHEMA_A"."AC_ASSOC_TABLE"."OBJECT_ID" 
      and "SCHEMA_A"."LIBRARY_ITEMS"."IS_PRIMARY" = 1 
     ) 
     where "SCHEMA_A"."AC_ASSOC_TABLE"."VIEW_COUNT" is not null 
     order by "SCHEMA_A"."AC_ASSOC_TABLE"."VIEW_COUNT" desc 
    ) "alias_101861728" 
    where "maxFileId" = 1 
) "x" 
    where rownum <= (0 + 10) 
) 
where "rn" > 0 
order by "rn"

而下面是我可以用DSL.field(Name,Class<T>)走出3.7.x的：

select 
    "v0" "pTitle", 
    "v1" "pCode", 
    "v2" "description", 
    "v3" "coid", 
    "v4" "viewCount", 
    "v5" "fileId", 
    "v6" "displayPos" 
from (
    select 
    "x"."v0", 
    "x"."v1", 
    "x"."v2", 
    "x"."v3", 
    "x"."v4", 
    "x"."v5", 
    "x"."v6", 
    rownum "rn" 
    from (
    select 
     pTitle "v0", 
     pCode "v1", 
     description "v2", 
     coid "v3", 
     viewCount "v4", 
     fileId "v5", 
     rownum "v6" 
    from (
     select 
     "SCHEMA_A"."LIBRARY"."TITLE" "pTitle", 
     "LibraryType"."CODE" "pCode", 
     "SCHEMA_A"."LIBRARY"."DESCRIPTION" "description", 
     "SCHEMA_A"."AC_ASSOC_TABLE"."OBJECT_ID" "coid", 
     "SCHEMA_A"."AC_ASSOC_TABLE"."VIEW_COUNT" "viewCount", 
     "SCHEMA_A"."FILES"."FILE_ID" "fileId", 
     row_number() over (partition by "SCHEMA_A"."AC_ASSOC_TABLE"."OBJECT_ID" order by "SCHEMA_A"."FILES"."FILE_ID" desc nulls last) "maxFileId" 
     from "SCHEMA_A"."AC_ASSOC_TABLE" 
     join (
      "SCHEMA_A"."LKU_CODE" 
      join "SCHEMA_A"."LKU_CODE_TYPE" 
      on (
       "SCHEMA_A"."LKU_CODE"."LKU_CODE_TYPE_ID" = "SCHEMA_A"."LKU_CODE_TYPE"."LKU_CODE_TYPE_ID" 
       and "SCHEMA_A"."LKU_CODE_TYPE"."CODE_TYPE" = 'OBJECT_TYPE' 
      ) 
     ) 
     on (
      "SCHEMA_A"."AC_ASSOC_TABLE"."OBJECT_TYPE_ID" = "SCHEMA_A"."LKU_CODE"."LKU_CODE_ID" 
      and "SCHEMA_A"."LKU_CODE"."CODE" = 'PORTFOLIOS' 
     ) 
     join "SCHEMA_A"."AC_RELEASE_TYPE" 
     on (
      "SCHEMA_A"."AC_RELEASE_TYPE"."AC_OBJECT_ID" = "SCHEMA_A"."AC_ASSOC_TABLE"."AC_OBJECT_ID" 
      and "SCHEMA_A"."AC_RELEASE_TYPE"."SECTION" = 1 
      and "SCHEMA_A"."AC_RELEASE_TYPE"."RELEASE_TYPE" in (
      6, 7 
     ) 
     ) 
     join "SCHEMA_A"."AC_SENSITIVITIES" 
     on (
      "SCHEMA_A"."AC_SENSITIVITIES"."AC_OBJECT_ID" = "SCHEMA_A"."AC_ASSOC_TABLE"."AC_OBJECT_ID" 
      and "SCHEMA_A"."AC_SENSITIVITIES"."SECTION" = 0 
     ) 
     join "SCHEMA_A"."USERS" 
     on (
      bitand(
      "SCHEMA_A"."AC_SENSITIVITIES"."SENSITIVITIES", 
      "SCHEMA_A"."USERS"."SENSITIVITIES") = "SCHEMA_A"."AC_SENSITIVITIES"."SENSITIVITIES" 
      and "SCHEMA_A"."USERS"."USER_ID" = 456920 
     ) 
     join (
      "SCHEMA_A"."LIBRARY" 
      join (
       "SCHEMA_A"."LKU_CODE" 
       join "SCHEMA_A"."LKU_CODE_TYPE" 
       on (
        "SCHEMA_A"."LKU_CODE"."LKU_CODE_TYPE_ID" = "SCHEMA_A"."LKU_CODE_TYPE"."LKU_CODE_TYPE_ID" 
        and "SCHEMA_A"."LKU_CODE_TYPE"."CODE_TYPE" = 'STATUS' 
       ) 
      ) 
      on (
       "SCHEMA_A"."LIBRARY"."LIBRARY_STATUS_ID" = "SCHEMA_A"."LKU_CODE"."LKU_CODE_ID" 
       and "SCHEMA_A"."LKU_CODE"."CODE" = 'ACTIVE' 
      ) 
      join (
       "SCHEMA_A"."LKU_CODE" "LibraryType" 
       join "SCHEMA_A"."LKU_CODE_TYPE" 
       on (
        "LibraryType"."LKU_CODE_TYPE_ID" = "SCHEMA_A"."LKU_CODE_TYPE"."LKU_CODE_TYPE_ID" 
        and "SCHEMA_A"."LKU_CODE_TYPE"."CODE_TYPE" = 'PORTFOLIO_TYPE' 
       ) 
      ) 
      on (
       "SCHEMA_A"."LIBRARY"."PORTFOLIO_TYPE_ID" = "LibraryType"."LKU_CODE_ID" 
       and "LibraryType"."CODE" in (
       'ELEMENT', 'PROJECT', 'PROGRAM' 
      ) 
      ) 
      join (
       "SCHEMA_A"."LKU_CODE" 
       join "SCHEMA_A"."LKU_CODE_TYPE" 
       on (
        "SCHEMA_A"."LKU_CODE"."LKU_CODE_TYPE_ID" = "SCHEMA_A"."LKU_CODE_TYPE"."LKU_CODE_TYPE_ID" 
        and "SCHEMA_A"."LKU_CODE_TYPE"."CODE_TYPE" = 'ACTIVITY_TYPE' 
       ) 
      ) 
      on (
       "SCHEMA_A"."LIBRARY"."ACTIVITY_TYPE_ID" = "SCHEMA_A"."LKU_CODE"."LKU_CODE_ID" 
       and "SCHEMA_A"."LKU_CODE"."CODE" in (
       'MISSION_WITH_TECHNOLOGY', 'TECHNOLOGY_ONLY' 
      ) 
      ) 
     ) 
     on "SCHEMA_A"."LIBRARY"."LIBRARY_ID" = "SCHEMA_A"."AC_ASSOC_TABLE"."OBJECT_ID" 
     left outer join (
      "SCHEMA_A"."LIBRARY_ITEMS" 
      join "SCHEMA_A"."FILES" 
      on "SCHEMA_A"."LIBRARY_ITEMS"."LIBRARY_ITEM_ID" = "SCHEMA_A"."FILES"."PARENT_OBJECT_ID" 
      join (
       "SCHEMA_A"."LKU_CODE" 
       join "SCHEMA_A"."LKU_CODE_TYPE" 
       on (
        "SCHEMA_A"."LKU_CODE"."LKU_CODE_TYPE_ID" = "SCHEMA_A"."LKU_CODE_TYPE"."LKU_CODE_TYPE_ID" 
        and "SCHEMA_A"."LKU_CODE_TYPE"."CODE_TYPE" = 'LIBRARY_ITEM_TYPE' 
       ) 
      ) 
      on (
       "SCHEMA_A"."LIBRARY_ITEMS"."LIBRARY_ITEM_TYPE_ID" = "SCHEMA_A"."LKU_CODE"."LKU_CODE_ID" 
       and "SCHEMA_A"."LKU_CODE"."CODE" = 'OBJECT_IMAGE' 
      ) 
     ) 
     on (
      "SCHEMA_A"."LIBRARY_ITEMS"."LIBRARY_ID" = "SCHEMA_A"."AC_ASSOC_TABLE"."OBJECT_ID" 
      and "SCHEMA_A"."LIBRARY_ITEMS"."IS_PRIMARY" = 1 
     ) 
     where "SCHEMA_A"."AC_ASSOC_TABLE"."VIEW_COUNT" is not null 
     order by "SCHEMA_A"."AC_ASSOC_TABLE"."VIEW_COUNT" desc 
    ) "alias_101861728" 
    where "maxFileId" = 1 
) "x" 
    where rownum <= (0 + 10) 
) 
where "rn" > 0 
order by "rn"

的上述重要的事情是，我們在別名周圍丟失了引號。現在Java代碼本身必須很有趣。似乎jOOq（在3.4.x和3.7.x中）「忘記」在使用別名的時候，它爲Oracle做了（奇妙的）極限和偏移模擬，所以我必須做一些詭計（3.4.x）：

final LkuCode libraryType = LkuCode.LKU_CODE.as("LibraryType"); 
final Field<Integer> maxFileId = DSL.rowNumber() 
     .over(DSL.partitionBy(co.OBJECT_ID).orderBy(f.FILE_ID.desc().nullsLast())) 
     .as("maxFileId"); 
final Field<String> pTitle = p.TITLE.as("pTitle"); 
final Field<String> pCode = libraryType.CODE.as("pCode"); 
final Field<String> description = p.DESCRIPTION.as("description"); 
final Field<BigDecimal> coid = co.OBJECT_ID.as("coid"); 
final Field<BigDecimal> viewCount = co.VIEW_COUNT.as("viewCount"); 
final Field<BigDecimal> fileId = f.FILE_ID.as("fileId"); 
final Field<String> pTitleAliasField = DSL.fieldByName(pTitle.getDataType(), pTitle.getName()); 
final Field<String> pCodeAliasField = DSL.fieldByName(pCode.getDataType(), pCode.getName()); 
final Field<String> descriptionAliasField = DSL.fieldByName(description.getDataType(), description.getName()); 
final Field<BigDecimal> coidAliasField = DSL.fieldByName(coid.getDataType(), coid.getName()); 
final Field<BigDecimal> viewCountAliasField = DSL.fieldByName(viewCount.getDataType(), viewCount.getName()); 
final Field<BigDecimal> fileIdAliasField = DSL.fieldByName(fileId.getDataType(), fileId.getName()); 
final Field<Integer> displayPos = (DSL.rownum().as("displayPos")); 

final BigDecimal[] rts = new BigDecimal[] {RELEASE_TYPE_PUBLIC, 
      RELEASE_TYPE_INTERNAL}; 
final Condition limitByRelease = (cort.SECTION.equal(BigDecimal 
     .valueOf(AccessControlConstants.CORE_OBJECT_CHAR_ARRAY_PUBLIC_DATA)).and(cort.RELEASE_TYPE 
     .in(rts))); 

final BigDecimal uid = new BigDecimal(DatabaseManager.getUid()); 

final Result<Record7<String, String, String, BigDecimal, BigDecimal, BigDecimal, Integer>> result; 
try (Connection readConn = DatabaseManager.getConnection(false); 
     final DSLContext readContext = DatabaseManager.getBuilder(readConn)) { 
    final Select<Record7<String, String, String, BigDecimal, BigDecimal, BigDecimal, Integer>> query = readContext 
      .select(pTitleAliasField, pCodeAliasField, descriptionAliasField, coidAliasField, 
        viewCountAliasField, fileIdAliasField, displayPos) 
      .from(readContext 
        .select(pTitle, pCode, description, coid, viewCount, fileId, maxFileId) 
        .from(co 
          .join(lc.join(lct).onKey(Keys.LC_LCT___FK) 
            .and(lct.CODE_TYPE.equal(LkuCodeTypeLookup.OBJECT_TYPE))) 
          .onKey(Keys.CO_LC_OTI___FK) 
          .and(lc.CODE.equal(LkuCodeLookup.OBJECTTYPE_PORTFOLIOS)) 
          .join(cort) 
          .onKey(Keys.CORT_CO___FK) 
          .and(limitByRelease) 
          .join(cos) 
          .onKey(Keys.COS_CO___FK) 
          .and(cos.SECTION.equal(BigDecimal 
            .valueOf(AccessControlConstants.CORE_OBJECT_CHAR_ARRAY_SELF))) 
          .join(tu) 
          .on(DSL.bitAnd(cos.SENSITIVITIES, tu.SENSITIVITIES) 
            .equal(cos.SENSITIVITIES).and(tu.USER_ID.equal(uid)))) 
        .join(p 
          .join(lc.join(lct).onKey(Keys.LC_LCT___FK) 
            .and(lct.CODE_TYPE.equal(LkuCodeTypeLookup.PORTFOLIO_STATUS))) 
          .onKey(Keys.P_LC_PSI___FK) 
          .and(lc.CODE.equal(LkuCodeLookup.PORTFOLIO_STATUS_ACTIVE)) 
          .join(libraryType.join(lct) 
            .on(libraryType.LKU_CODE_TYPE_ID.equal(lct.LKU_CODE_TYPE_ID)) 
            .and(lct.CODE_TYPE.equal(LkuCodeTypeLookup.PORTFOLIO_TYPE))) 
          .on(p.PORTFOLIO_TYPE_ID.equal(libraryType.LKU_CODE_ID)) 
          .and(libraryType.CODE 
            .in(new String[] {LkuCodeLookup.PORTFOLIO_TYPE_ELEMENT, 
              LkuCodeLookup.PORTFOLIO_TYPE_PROJECT, 
              LkuCodeLookup.PORTFOLIO_TYPE_PROGRAM})) 
          .join(lc.join(lct).onKey(Keys.LC_LCT___FK) 
            .and(lct.CODE_TYPE.equal(LkuCodeTypeLookup.ACTIVITY_TYPE))) 
          .onKey(Keys.P_LC_ATI___FK) 
          .and(lc.CODE.in(LkuCodeLookup.PORTFOLIO_ACTIVITY_TYPE_TECHNOLOGY))) 
        .on(p.PORTFOLIO_ID.equal(co.OBJECT_ID)) 
        .leftOuterJoin(
          li 
            .join(f) 
            .on(li.LIBRARY_ITEM_ID.equal(f.PARENT_OBJECT_ID)) 
            .join(lc 
              .join(lct) 
              .onKey(Keys.LC_LCT___FK) 
              .and(lct.CODE_TYPE 
                .equal(LkuCodeTypeLookup.LIBRARY_ITEM_TYPE))) 
            .onKey(Keys.LI_LC_LITI___FK) 
            .and(lc.CODE.equal(LkuCodeLookup.LIBRARY_ITEM_TYPE_OBJECT_IMAGE))) 
        .on(li.PORTFOLIO_ID.equal(co.OBJECT_ID).and(
          li.IS_PRIMARY.equal(byteOne))) 
        .where(co.VIEW_COUNT.isNotNull()).orderBy(co.VIEW_COUNT.desc())) 
      .where(maxFileId.equal(Integer.valueOf(1))).limit(numberOfObjects).offset(startNumber - 1); 

    result = query.fetch();

現在，我明白，我可以使用，而不是加入SENSITVITIES SQL EXISTS和RELEASE_TYPES表（以及其他幾個表），但是這是我在做什麼，現在，這就是這個問題並不真正相關。如果還有其他事情我可以做，我很樂意聽到它。我試着不使用在所有的別名，但事情隨後得到打亂了：

final Select<Record7<String, String, String, BigDecimal, BigDecimal, BigDecimal, Integer>> query = readContext 
      .select(HomeDAO.p.PORTFOLIO_TITLE, portfolioType.CODE, HomeDAO.p.BRIEF_DESCRIPTION, 
        HomeDAO.co.OBJECT_ID, HomeDAO.co.VIEW_COUNT, HomeDAO.f.FILE_ID, displayPos) 
      .from(readContext 
        .select(HomeDAO.p.PORTFOLIO_TITLE, portfolioType.CODE, HomeDAO.p.BRIEF_DESCRIPTION, 
          HomeDAO.co.OBJECT_ID, HomeDAO.co.VIEW_COUNT, HomeDAO.f.FILE_ID, maxFileId) 
        .from(HomeDAO.co 
          .join(HomeDAO.lc.join(HomeDAO.lct).onKey(Keys.LC_LCT___FK) 
            .and(HomeDAO.lct.CODE_TYPE.equal(LkuCodeTypeLookup.OBJECT_TYPE))) 
          .onKey(Keys.CO_LC_OTI___FK) 
          .and(HomeDAO.lc.CODE.equal(LkuCodeLookup.OBJECTTYPE_PORTFOLIOS)) 
          .join(HomeDAO.cort) 
          .onKey(Keys.CORT_CO___FK) 
          .and(limitByRelease) 
          .join(HomeDAO.cos) 
          .onKey(Keys.COS_CO___FK) 
          .and(HomeDAO.cos.SECTION.equal(BigDecimal 
            .valueOf(AccessControlConstants.CORE_OBJECT_CHAR_ARRAY_SELF))) 
          .join(HomeDAO.tu) 
          .on(DSL.bitAnd(HomeDAO.cos.SENSITIVITIES, HomeDAO.tu.SENSITIVITIES) 
            .equal(HomeDAO.cos.SENSITIVITIES).and(HomeDAO.tu.USER_ID.equal(uid)))) 
        .join(HomeDAO.p 
          .join(HomeDAO.lc.join(HomeDAO.lct).onKey(Keys.LC_LCT___FK) 
            .and(HomeDAO.lct.CODE_TYPE.equal(LkuCodeTypeLookup.PORTFOLIO_STATUS))) 
          .onKey(Keys.P_LC_PSI___FK) 
          .and(HomeDAO.lc.CODE.equal(LkuCodeLookup.PORTFOLIO_STATUS_ACTIVE)) 
          .join(portfolioType.join(HomeDAO.lct) 
            .on(portfolioType.LKU_CODE_TYPE_ID.equal(HomeDAO.lct.LKU_CODE_TYPE_ID)) 
            .and(HomeDAO.lct.CODE_TYPE.equal(LkuCodeTypeLookup.PORTFOLIO_TYPE))) 
          .on(HomeDAO.p.PORTFOLIO_TYPE_ID.equal(portfolioType.LKU_CODE_ID)) 
          .and(portfolioType.CODE 
            .in(new String[] {LkuCodeLookup.PORTFOLIO_TYPE_ELEMENT, 
              LkuCodeLookup.PORTFOLIO_TYPE_PROJECT, 
              LkuCodeLookup.PORTFOLIO_TYPE_PROGRAM})) 
          .join(HomeDAO.lc.join(HomeDAO.lct).onKey(Keys.LC_LCT___FK) 
            .and(HomeDAO.lct.CODE_TYPE.equal(LkuCodeTypeLookup.ACTIVITY_TYPE))) 
          .onKey(Keys.P_LC_ATI___FK) 
          .and(HomeDAO.lc.CODE.in(LkuCodeLookup.PORTFOLIO_ACTIVITY_TYPE_TECHNOLOGY))) 
        .on(HomeDAO.p.PORTFOLIO_ID.equal(HomeDAO.co.OBJECT_ID)) 
        .leftOuterJoin(
          HomeDAO.li 
            .join(HomeDAO.f) 
            .on(HomeDAO.li.LIBRARY_ITEM_ID.equal(HomeDAO.f.PARENT_OBJECT_ID)) 
            .join(HomeDAO.lc 
              .join(HomeDAO.lct) 
              .onKey(Keys.LC_LCT___FK) 
              .and(HomeDAO.lct.CODE_TYPE 
                .equal(LkuCodeTypeLookup.LIBRARY_ITEM_TYPE))) 
            .onKey(Keys.LI_LC_LITI___FK) 
            .and(HomeDAO.lc.CODE.equal(LkuCodeLookup.LIBRARY_ITEM_TYPE_OBJECT_IMAGE))) 
        .on(HomeDAO.li.PORTFOLIO_ID.equal(HomeDAO.co.OBJECT_ID).and(
          HomeDAO.li.IS_PRIMARY.equal(HomeDAO.byteOne))) 
        .where(HomeDAO.co.VIEW_COUNT.isNotNull()).orderBy(HomeDAO.co.VIEW_COUNT.desc())) 
      .where(maxFileId.equal(Integer.valueOf(1))).limit(numberOfObjects).offset(startNumber - 1);

其中產量：

select 
    "v0" "TITLE", 
    "v1" "CODE", 
    "v2" "DESCRIPTION", 
    "v3" "OBJECT_ID", 
    "v4" "VIEW_COUNT", 
    "v5" "FILE_ID", 
    "v6" "displayPos" 
from (
    select 
    "x"."v0", 
    "x"."v1", 
    "x"."v2", 
    "x"."v3", 
    "x"."v4", 
    "x"."v5", 
    "x"."v6", 
    rownum "rn" 
    from (
    select 
     "SCHEMA_A"."LIBRARY"."TITLE" "v0", 
     "PortfolioType"."CODE" "v1", 
     "SCHEMA_A"."LIBRARY"."DESCRIPTION" "v2", 
     "SCHEMA_A"."AC_ASSOC_TABLE"."OBJECT_ID" "v3", 
     "SCHEMA_A"."AC_ASSOC_TABLE"."VIEW_COUNT" "v4", 
     "SCHEMA_A"."FILES"."FILE_ID" "v5", 
     row_number "v6" 
    from (
     select 
     "SCHEMA_A"."LIBRARY"."TITLE", 
     "PortfolioType"."CODE", 
     "SCHEMA_A"."LIBRARY"."DESCRIPTION", 
     "SCHEMA_A"."AC_ASSOC_TABLE"."OBJECT_ID", 
     "SCHEMA_A"."AC_ASSOC_TABLE"."VIEW_COUNT", 
     "SCHEMA_A"."FILES"."FILE_ID", 
     row_number() over (partition by "SCHEMA_A"."AC_ASSOC_TABLE"."OBJECT_ID" order by "SCHEMA_A"."FILES"."FILE_ID" desc nulls last) "maxFileId" 
     from "SCHEMA_A"."AC_ASSOC_TABLE" 
     join (
      "SCHEMA_A"."LKU_CODE" 
      join "SCHEMA_A"."LKU_CODE_TYPE" 
      on (
       "SCHEMA_A"."LKU_CODE"."LKU_CODE_TYPE_ID" = "SCHEMA_A"."LKU_CODE_TYPE"."LKU_CODE_TYPE_ID" 
       and "SCHEMA_A"."LKU_CODE_TYPE"."CODE_TYPE" = 'OBJECT_TYPE' 
      ) 
     ) 
     on (
      "SCHEMA_A"."AC_ASSOC_TABLE"."OBJECT_TYPE_ID" = "SCHEMA_A"."LKU_CODE"."LKU_CODE_ID" 
      and "SCHEMA_A"."LKU_CODE"."CODE" = 'PORTFOLIOS' 
     ) 
     join "SCHEMA_A"."AC_RELEASE_TYPE" 
     on (
      "SCHEMA_A"."AC_RELEASE_TYPE"."AC_OBJECT_ID" = "SCHEMA_A"."AC_ASSOC_TABLE"."AC_OBJECT_ID" 
      and "SCHEMA_A"."AC_RELEASE_TYPE"."SECTION" = 1 
      and "SCHEMA_A"."AC_RELEASE_TYPE"."RELEASE_TYPE" in (
      6, 7 
     ) 
     ) 
     join "SCHEMA_A"."AC_SENSITIVITIES" 
     on (
      "SCHEMA_A"."AC_SENSITIVITIES"."AC_OBJECT_ID" = "SCHEMA_A"."AC_ASSOC_TABLE"."AC_OBJECT_ID" 
      and "SCHEMA_A"."AC_SENSITIVITIES"."SECTION" = 0 
     ) 
     join "SCHEMA_A"."USERS" 
     on (
      bitand(
      "SCHEMA_A"."AC_SENSITIVITIES"."SENSITIVITIES", 
      "SCHEMA_A"."USERS"."SENSITIVITIES") = "SCHEMA_A"."AC_SENSITIVITIES"."SENSITIVITIES" 
      and "SCHEMA_A"."USERS"."USER_ID" = 456920 
     ) 
     join (
      "SCHEMA_A"."LIBRARY" 
      join (
       "SCHEMA_A"."LKU_CODE" 
       join "SCHEMA_A"."LKU_CODE_TYPE" 
       on (
        "SCHEMA_A"."LKU_CODE"."LKU_CODE_TYPE_ID" = "SCHEMA_A"."LKU_CODE_TYPE"."LKU_CODE_TYPE_ID" 
        and "SCHEMA_A"."LKU_CODE_TYPE"."CODE_TYPE" = 'STATUS' 
       ) 
      ) 
      on (
       "SCHEMA_A"."LIBRARY"."PORTFOLIO_STATUS_ID" = "SCHEMA_A"."LKU_CODE"."LKU_CODE_ID" 
       and "SCHEMA_A"."LKU_CODE"."CODE" = 'ACTIVE' 
      ) 
      join (
       "SCHEMA_A"."LKU_CODE" "PortfolioType" 
       join "SCHEMA_A"."LKU_CODE_TYPE" 
       on (
        "PortfolioType"."LKU_CODE_TYPE_ID" = "SCHEMA_A"."LKU_CODE_TYPE"."LKU_CODE_TYPE_ID" 
        and "SCHEMA_A"."LKU_CODE_TYPE"."CODE_TYPE" = 'PORTFOLIO_TYPE' 
       ) 
      ) 
      on (
       "SCHEMA_A"."LIBRARY"."LIBRARY_ITEM_ID" = "PortfolioType"."LKU_CODE_ID" 
       and "PortfolioType"."CODE" in (
       'ELEMENT', 'PROJECT', 'PROGRAM' 
      ) 
      ) 
      join (
       "SCHEMA_A"."LKU_CODE" 
       join "SCHEMA_A"."LKU_CODE_TYPE" 
       on (
        "SCHEMA_A"."LKU_CODE"."LKU_CODE_TYPE_ID" = "SCHEMA_A"."LKU_CODE_TYPE"."LKU_CODE_TYPE_ID" 
        and "SCHEMA_A"."LKU_CODE_TYPE"."CODE_TYPE" = 'ACTIVITY_TYPE' 
       ) 
      ) 
      on (
       "SCHEMA_A"."LIBRARY"."ACTIVITY_TYPE_ID" = "SCHEMA_A"."LKU_CODE"."LKU_CODE_ID" 
       and "SCHEMA_A"."LKU_CODE"."CODE" in (
       'MISSION_WITH_TECHNOLOGY', 'TECHNOLOGY_ONLY' 
      ) 
      ) 
     ) 
     on "SCHEMA_A"."LIBRARY"."LIBRARY_ITEM_ID" = "SCHEMA_A"."AC_ASSOC_TABLE"."OBJECT_ID" 
     left outer join (
      "SCHEMA_A"."LIBRARY_ITEMS" 
      join "SCHEMA_A"."FILES" 
      on "SCHEMA_A"."LIBRARY_ITEMS"."LIBRARY_ITEM_ID" = "SCHEMA_A"."FILES"."PARENT_OBJECT_ID" 
      join (
       "SCHEMA_A"."LKU_CODE" 
       join "SCHEMA_A"."LKU_CODE_TYPE" 
       on (
        "SCHEMA_A"."LKU_CODE"."LKU_CODE_TYPE_ID" = "SCHEMA_A"."LKU_CODE_TYPE"."LKU_CODE_TYPE_ID" 
        and "SCHEMA_A"."LKU_CODE_TYPE"."CODE_TYPE" = 'LIBRARY_ITEM_TYPE' 
       ) 
      ) 
      on (
       "SCHEMA_A"."LIBRARY_ITEMS"."LIBRARY_ITEM_TYPE_ID" = "SCHEMA_A"."LKU_CODE"."LKU_CODE_ID" 
       and "SCHEMA_A"."LKU_CODE"."CODE" = 'OBJECT_IMAGE' 
      ) 
     ) 
     on (
      "SCHEMA_A"."LIBRARY_ITEMS"."LIBRARY_ITEM_ID" = "SCHEMA_A"."AC_ASSOC_TABLE"."OBJECT_ID" 
      and "SCHEMA_A"."LIBRARY_ITEMS"."IS_PRIMARY" = 1 
     ) 
     where "SCHEMA_A"."AC_ASSOC_TABLE"."VIEW_COUNT" is not null 
     order by "SCHEMA_A"."AC_ASSOC_TABLE"."VIEW_COUNT" desc 
    ) "alias_62833117" 
    where "maxFileId" = 1 
) "x" 
    where rownum <= (0 + 10) 
) 
where "rn" > 0 
order by "rn"

此情況下，SQL異常（ORA-00904: "SCHEMA_A"."FILES"."FILE_ID": invalid identifier - 行錯誤：26列：7）。

僅使用第一組別名會導致錯誤的SQL查詢，因爲jOOq的模擬LIMIT不使用別名，而是使用全名。

final LkuCode libraryType = LkuCode.LKU_CODE.as("LibraryType"); 
final Field<Integer> maxFileId = DSL.rowNumber() 
     .over(DSL.partitionBy(co.OBJECT_ID).orderBy(f.FILE_ID.desc().nullsLast())) 
     .as("maxFileId"); 
final Field<String> pTitle = p.TITLE.as("pTitle"); 
final Field<String> pCode = libraryType.CODE.as("pCode"); 
final Field<String> description = p.DESCRIPTION.as("description"); 
final Field<BigDecimal> coid = co.OBJECT_ID.as("coid"); 
final Field<BigDecimal> viewCount = co.VIEW_COUNT.as("viewCount"); 
final Field<BigDecimal> fileId = f.FILE_ID.as("fileId"); 

    final Select<Record7<String, String, String, BigDecimal, BigDecimal, BigDecimal, Integer>> query = readContext 
      .select(pTitle, pCode, description, coid, viewCount, fileId, displayPos) 
      .from(readContext 
        .select(pTitle, pCode, description, coid, viewCount, fileId, maxFileId)

產生了片段：

select 
    "v0" "pTitle", 
    "v1" "pCode", 
    "v2" "description", 
    "v3" "coid", 
    "v4" "viewCount", 
    "v5" "fileId", 
    "v6" "displayPos" 
from (
    select 
    "x"."v0", 
    "x"."v1", 
    "x"."v2", 
    "x"."v3", 
    "x"."v4", 
    "x"."v5", 
    "x"."v6", 
    rownum "rn" 
    from (
    select 
     "SCHEMA_A"."LIBRARY"."TITLE" "v0", 
     "LibraryType"."CODE" "v1", 
     "SCHEMA_A"."LIBRARY"."DESCRIPTION" "v2", 
     "SCHEMA_A"."AC_ASSOC_TABLE"."OBJECT_ID" "v3", 
     "SCHEMA_A"."AC_ASSOC_TABLE"."VIEW_COUNT" "v4", 
     "SCHEMA_A"."FILES"."FILE_ID" "v5", 
     rownum "v6" 
    from (
     select 
     "SCHEMA_A"."LIBRARY"."TITLE" "pTitle", 
     "LibraryType"."CODE" "pCode", 
     "SCHEMA_A"."LIBRARY"."DESCRIPTION" "description", 
     "SCHEMA_A"."AC_ASSOC_TABLE"."OBJECT_ID" "coid", 
     "SCHEMA_A"."AC_ASSOC_TABLE"."VIEW_COUNT" "viewCount", 
     "SCHEMA_A"."FILES"."FILE_ID" "fileId", 
     row_number() over (partition by "SCHEMA_A"."AC_ASSOC_TABLE"."OBJECT_ID" order by "SCHEMA_A"."FILES"."FILE_ID" desc nulls last) "maxFileId"

來源

2016-04-15 DanO

嗯，這不應該發生，我似乎無法立即重現它。你確定你正在使用'field（Name，Class ）'而不是，也許''field（String，Class ）''？另外，我可能會誤解你的問題，但我認爲你只使用jOOQ 3.4發佈了工作代碼，而不是使用3.7的失敗Java代碼，是嗎？ –

我本來會喜歡有更多的東西，但是達到了字符極限並且不得不做出「剪裁」。你知道什麼......我忘了'.getName（）'返回一個'String'。我必須製作一個字段，一個名稱，然後是第二個「別名」字段嗎？如果你寫的是代碼，你會怎麼做別名？只是一個顯示一組別名（sans查詢）的例子將受到高度讚賞（可能是pTitle和別名字段的示例，如果必須有的話）。 – DanO

快速後續問題：有沒有辦法消除對第二組變量的需求？ – DanO

從我可以在評論中告訴，你可能會混淆field(Name,Class<T>)與field(String,Class<T>)

第（field(Name,Class<T>)）產生一個場用正式的，可能是合格的列名，默認情況下由jOOQ引用。這是你應該在這裏使用的。這裏更多的信息：http://www.jooq.org/doc/latest/manual/sql-building/names
後者（field(String,Class<T>)）產生一個領域與一些普通的SQL內容。所以，jOOQ不能引用該字符串，因爲字符串的語義是任意的SQL表達式，不一定是標識符。更多的信息在這裏：http://www.jooq.org/doc/latest/manual/sql-building/plain-sql

來源

2016-04-21 12:28:41

jOOq替換爲DSL.fieldByName

回答

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