我正在尝试查询一个小型数据库，但是即使经过12个小时的处理时间仍然没有结果。我该如何解决？
我尝试了各种形式的索引编制，包括通过eversql.com运行代码
以下是查询：（很多内部联接）
`SELECT
bo2_b.[date],
AD_B.[close] AS AD_B,
BAX_B.[close] AS BAX_B,
BO2_B.[close] AS BO2_B,
BP_B.[close] AS BP_B,
C2_B.[close] AS C2_B,
CC2_B.[close] AS CC2_B,
CD_B.[close] AS CD_B,
CL2_B.[close] AS CL2_B,
CT_B.[close] AS CT_B,
CU_B.[close] AS CU_B,
DX2_B.[close] AS DX2_B,
EBL_B.[close] AS EBL_B,
EBM_B.[close] AS EBM_B,
ED_B.[close] AS ED_B,
ES_B.[close] AS ES_B,
FCH_B.[close] AS FCH_B,
FDX_B.[close] AS FDX_B,
FEI_B.[close] AS FEI_B,
FFI_B.[close] AS FFI_B,
FLG_B.[close] AS FLG_B,
FSS_B.[close] AS FSS_B,
FV_B.[close] AS FV_B,
GC2_B.[close] AS GC2_B,
HG2_B.[close] AS HG2_B,
HMH_B.[close] AS HMH_B,
HO2_B.[close] AS HO2_B,
JAU_B.[close] AS JAU_B,
JGL_B.[close] AS JGL_B,
JPL_B.[close] AS JPL_B,
JRU_B.[close] AS JRU_B,
JY_B.[close] AS JY_B,
KC_B.[close] AS KC_B,
KPO_B.[close] AS KPO_B,
LCO_B.[close] AS LCO_B,
LC_B.[close] AS LC_B,
LGO_B.[close] AS LGO_B,
LH_B.[close] AS LH_B,
MFX_B.[close] AS MFX_B,
MP_B.[close] AS MP_B,
NG2_B.[close] AS NG2_B,
NQ_B.[close] AS NQ_B,
RB2_B.[close] AS RB2_B,
RS_B.[close] AS RS_B,
S2_B.[close] AS S2_B,
SB2_B.[close] AS SB2_B,
SF_B.[close] AS SF_B,
SI2_B.[close] AS SI2_B,
SM2_B.[close] AS SM2_B,
SSI_B.[close] AS SSI_B,
STW_B.[close] AS STW_B,
SXE_B.[close] AS SXE_B,
S_B.[close] AS S_B,
TU_B.[close] AS TU_B,
TY_B.[close] AS TY_B,
US_B.[close] AS US_B,
W2_B.[close] AS W2_B
FROM
BO2_B
JOIN
AD_B
ON bo2_b.date = AD_B.date
JOIN
BAX_B
ON bo2_b.date = BAX_B.date
JOIN
BP_B
ON bo2_b.date = BP_B.date
JOIN
C2_B
ON bo2_b.date = C2_B.date
JOIN
CC2_B
ON bo2_b.date = CC2_B.date
JOIN
CD_B
ON bo2_b.date = CD_B.date
JOIN
CL2_B
ON bo2_b.date = CL2_B.date
JOIN
CT_B
ON bo2_b.date = CT_B.date
JOIN
CU_B
ON bo2_b.date = CU_B.date
JOIN
DX2_B
ON bo2_b.date = DX2_B.date
JOIN
EBL_B
ON bo2_b.date = EBL_B.date
JOIN
EBM_B
ON bo2_b.date = EBM_B.date
JOIN
ED_B
ON bo2_b.date = ED_B.date
JOIN
ES_B
ON bo2_b.date = ES_B.date
JOIN
FCH_B
ON bo2_b.date = FCH_B.date
JOIN
FDX_B
ON bo2_b.date = FDX_B.date
JOIN
FEI_B
ON bo2_b.date = FEI_B.date
JOIN
FFI_B
ON bo2_b.date = FFI_B.date
JOIN
FLG_B
ON bo2_b.date = FLG_B.date
JOIN
FSS_B
ON bo2_b.date = FSS_B.date
JOIN
FV_B
ON bo2_b.date = FV_B.date
JOIN
GC2_B
ON bo2_b.date = GC2_B.date
JOIN
HG2_B
ON bo2_b.date = HG2_B.date
JOIN
HMH_B
ON bo2_b.date = HMH_B.date
JOIN
HO2_B
ON bo2_b.date = HO2_B.date
JOIN
JAU_B
ON bo2_b.date = JAU_B.date
JOIN
JGL_B
ON bo2_b.date = JGL_B.date
JOIN
JPL_B
ON bo2_b.date = JPL_B.date
JOIN
JRU_B
ON bo2_b.date = JRU_B.date
JOIN
JY_B
ON bo2_b.date = JY_B.date
JOIN
KC_B
ON bo2_b.date = KC_B.date
JOIN
KPO_B
ON bo2_b.date = KPO_B.date
JOIN
LCO_B
ON bo2_b.date = LCO_B.date
JOIN
LC_B
ON bo2_b.date = LC_B.date
JOIN
LGO_B
ON bo2_b.date = LGO_B.date
JOIN
LH_B
ON bo2_b.date = LH_B.date
JOIN
MFX_B
ON bo2_b.date = MFX_B.date
JOIN
MP_B
ON bo2_b.date = MP_B.date
JOIN
NG2_B
ON bo2_b.date = NG2_B.date
JOIN
NQ_B
ON bo2_b.date = NQ_B.date
JOIN
RB2_B
ON bo2_b.date = RB2_B.date
JOIN
RS_B
ON bo2_b.date = RS_B.date
JOIN
S2_B
ON bo2_b.date = S2_B.date
JOIN
SB2_B
ON bo2_b.date = SB2_B.date
JOIN
SF_B
ON bo2_b.date = SF_B.date
JOIN
SI2_B
ON bo2_b.date = SI2_B.date
JOIN
SM2_B
ON bo2_b.date = SM2_B.date
JOIN
SSI_B
ON bo2_b.date = SSI_B.date
JOIN
STW_B
ON bo2_b.date = STW_B.date
JOIN
SXE_B
ON bo2_b.date = SXE_B.date
JOIN
S_B
ON bo2_b.date = S_B.date
JOIN
TU_B
ON bo2_b.date = TU_B.date
JOIN
TY_B
ON bo2_b.date = TY_B.date
JOIN
US_B
ON bo2_b.date = US_B.date
JOIN
W2_B
ON bo2_b.date = W2_B.date
`
我希望在按日期加入的列中包含各种金融市场收盘价的表格。取而代之的是，除非将数据的年限减少到少于2（约30年），否则我的查询时间会变得非常慢。