Your SQL command was:
 SELECT TOP 100 sp.objID, 
 sp.ra, 
 sp.dec, 
 sp.mjd, 
 px.taiBegin, 
 px.taiEnd, 
 sp.fiberID, 
 sp.z 
 FROM specPhoto AS sp 
 JOIN plateX AS px ON sp.plateID = px.plateID 
 WHERE 
 (sp.class='QSO') 
 AND sp.z > 3 

Your query output (max 500,000 rows):

objIDradecmjdtaiBegintaiEndfiberIDz
123768007447117870827.1006625.3287275736049558389064955925243.1653.466368
123768007447124431527.29460725.2928735704649284424634928785464.184383.142175
123768007447124478127.33209425.3389165704649284424634928785464.184396.030838
123768007447144094327.77597625.2913165594648336563764833745439.871123.100249
123768007447248932830.35509124.8049345706449302497274930339629.177006.191983
123768007500319982014.84813727.3228155624048591573084859161154.865563.246681
123768007500372461916.31609527.1269465624048591573084859161154.867603.10887
123768007500385538216.53377627.075155624048591573084859161154.868033.393371
123768007500536342020.42649426.7187715741549593709624960667886.168336.823458
123768007500582146121.55941126.7000325621948572593164857351937.861373.041872
123768007500667392623.69436826.356215706249300765394930164808.179235.882922
123768007500680454224.06470426.2645535706249300765394930164808.179784.243001
123768007500765679526.25267926.0092385736049558389064955925243.168836.317843
123768007500791869726.85303925.8220935594648336563764833745439.877333.526891
123768007500804977727.25657225.8303935594648336563764833745439.878143.319881
123768007500883615629.21772325.5807955704649284424634928785464.189783.352381
123768007500890220929.37979725.3923365706449302497274930339629.175014.168654
123768007500922898630.16109225.4353665706449302497274930339629.176405.656546
123768007500981922131.57986525.0644875706449302497274930339629.179323.004542
123768007501001538932.16118525.0351435706449302497274930339629.179946.164371
123768007554020194315.26571127.7396545736349560122254956185528.163485.840771
123768007554033317315.6107727.6691255624048591573084859161154.866344.303513
123768007554059494516.35471727.640235624048591573084859161154.867503.297029
123768007554249623821.14629826.9946615741549593709624960667886.169416.537373
123768007554282335421.92440927.0060435622348576977744857701620.855006.120959
123768007554361005423.96084426.7959635706249300765394930164808.179463.790137
123768007554374105524.28730926.6833085706249300765394930164808.179824.0752
123768007554413423825.29595826.5438195622348575293484857705278.873663.233106
123768007554465903226.56783426.3209315736049558389064955925243.169195.839284
123768007554524788328.12404426.0156585704649284424634928785464.187263.342237
123768007554531373128.20392326.0309875704649284424634928785464.187643.340106
123768007554583802829.59278825.8236845706449302497274930339629.175453.745732
123768007554596881329.86287325.7181615706449302497274930339629.175963.279701
123768007554616556530.34683425.6254575706449302497274930339629.176753.486906
123768007554616574630.38499225.749375706449302497274930339629.177153.621592
123768007554649301431.21307725.6675875706449302497274930339629.178787.00572
123768007554662437231.58757525.5694865706449302497274930339629.179163.392319
123768007554682098732.01044125.4659555706449302497274930339629.179573.564063
123768007607602437312.62645128.2214695735949558264644955830309.177323.064533
123768007607602446212.66756828.2439585735949558264644955830309.177313.047379
1237657773925073275120.8901928.2454575553647983378474798341695.867423.712528
1237657773925270452121.2458728.6549965553747984240624798428988.874383.972485
1237657773925466673121.4992528.8921685553747984240624798428988.873883.14255
1237657773925794951122.2495829.4689545553747984240624798428988.877743.012143
1237657773929267842128.9835534.8579935553247979917414797997565.864003.057106
1237657773929398487129.2534635.0972925553247979917414797997565.866603.306818
1237657773929595373129.6535.3143155553247979917414797997565.867785.756143
1237657774460699551118.2214226.5277845553347980729104798078729.852403.102553
1237657774460699595118.3130826.4703655553347980729104798078729.852313.639275
1237657774462468348121.4959829.3147255553747984240624798428988.876517.011245
1237657774462469646121.5530129.4508765553747984240624798428988.876497.011245
1237657774462600179121.7170729.6489415553747984240624798428988.876833.137691
1237657774466597316129.641235.8864985745049636873474963693152.131215.582882
1237657774466859225130.1031936.2705375745049636873474963693152.13495.939898
1237657774466990572130.4443936.441415745049636873474963693152.13543.246852
1237657774467121328130.8697136.685375625148601163734860122184.865803.415704
1237657774467449358131.5299637.0148555745249638603384963864181.143373.031762
1237657774470529382138.876841.3667825739049585166474958520489.134945.862507
1237657774470988617139.9317342.0304825594448333248224833586694.853743.108372
1237657774471709441141.7509943.0046775594448333248224833586694.859363.148206
1237657774996062912115.2527224.2618345558748025585874802734375.877563.139612
1237657774996915220116.8270425.7689135560048031597944803853041.89763.327712
1237657774997111922117.2024326.0868715553347980729104798078729.854143.037203
1237657774997569963117.9753726.7312795553347980729104798078729.852803.809217
1237657775002944001128.2424435.2684145553247979917414797997565.865123.005137
1237657775003272133129.0336935.8302635553247979917414797997565.866313.63856
1237657775003468433129.2333736.226565553247979917414797997565.866623.235582
1237657775003600010129.59636.2900385745049636873474963693152.131315.448834
1237657775003664678129.6338936.4716115745049636873474963693152.131345.646598
1237657775004320080131.1032437.487755625148601163734860122184.865523.931375
1237657775004647997131.8362637.9511645745249638603384963864181.147593.046976
1237657775004713212132.1547738.0089955625148601163734860122184.867043.29043
1237657775004778639132.2196438.0415385625148601163734860122184.867563.130267
1237657775005434254133.6731439.0177325744649633421294963345973.161523.023589
1237657775005565837134.0781539.2496845744649633421294963345973.161323.243618
1237657775005696818134.4174839.382775744649633421294963345973.161003.165084
123768007607674521214.43365828.1950935735949558264644955830309.179934.821628
123768007607753192416.58605927.9613185736349560122254956185528.161164.155012
123768007607772910917.09643627.9681415736349560122254956185528.16296.1434
123768007607949804321.61796427.4171845621948572593164857351937.868985.689373
123768007608093955225.23486627.0107635622348575293484857705278.873816.562686
123768007608126689026.06975126.8209985594648336563764833745439.875813.794266
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123768007608192261127.65576226.7045355704649284424634928785464.186223.046949
123768007608205399128.10688626.6250145704649284424634928785464.187417.002496
123768007608342954931.38803525.9232835706449302497274930339629.179103.470442
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1237680092722365292335.444615.8773925575148169201214816924949.859683.707666
1237680092724789929341.1175716.5264495624448594857394859490570.874643.084901
1237657775538176704124.5125933.1271275550647957520074795758803.87763.23793
1237657776074719894123.4397532.9459115550647957520074795758803.873083.459044
1237657775537455889123.1882531.9267625550647957520074795758803.873263.966133