oracle - Get all rows from a table having a particular column value but ordered by different column value -


i having trouble formulating question, give example demonstrate. consider table as,

create table abc (     pid number(10,0) not null,     disp_col varchar2(100 byte),     val_col varchar2(20 byte),     ord_col1 number(5,2),     ord_col2 number(5,2),     constraint pk_pid primary key     (         pid     ) );

and data have is,

pid | disp_col | val_col | ord_col1 | ord_col2 ---------------------------------------------- 1   | disp1    | val1    | 1        | 14 2   | disp2    | val26   | 2        | 22 3   | disp1    | val8    | 1        | 17 4   | disp1    | val56   | 1        | 9 5   | disp2    | val9    | 2        | -10 6   | disp3    | val12   | 2        | 20 7   | aisp1    | val7    | 2        | -3

now based on descending ordering of ord_col1, ord_col2, want unique disp_col values , rows of disp_col value follow. data should like,

pid | disp_col | val_col | ord_col1 | ord_col2 ---------------------------------------------- 2   | disp2    | val26   | 2        | 22 5   | disp2    | val9    | 2        | -10 6   | disp3    | val12   | 2        | 20 7   | aisp1    | val7    | 2        | -3 3   | disp1    | val8    | 1        | 17 1   | disp1    | val1    | 1        | 14 4   | disp1    | val56   | 1        | 9

a simple order ord_col1 desc, ord_col2 desc me order want disp_col occur want same valued rows follow that.

i kind of new oracle , pl/sql, appreciated. in advance.

select * abc order ord_col1 desc, disp_col asc, ord_col2 desc;

http://sqlfiddle.com/#!4/40401/18

you need order disp_col in asc in order result want. see updated fiddle , code above. give want question.


-

Comments

Post a Comment

Popular posts from this blog

OpenCV OpenCL: Convert Mat to Bitmap in JNI Layer for Android -

there several posts converting mat bitmap using utils.mattobitmap() function. i'm assuming function can called in java layer after importing utils class. i want transfer data memory address pointed uint32_t* bmpcontent; in code below. jniexport void jnicall java_com_nod_nodcv_nodcvactivity_runfilter( jnienv *env, jclass clazz, jobject outbmp, jbytearray indata, jint width, jint height, jint choice, jint filter) { int outsz = width*height; int insz = outsz + outsz/2; androidbitmapinfo bmpinfo; if (androidbitmap_getinfo(env, outbmp, &bmpinfo) < 0) { throwjavaexception(env,"gaussianblur","error retrieving bitmap meta data"); return; } if (bmpinfo.format != android_bitmap_format_rgba_8888) { throwjavaexception(env,"gaussianblur","expecting rgba_8888 format"); return; } uint32_t* bmpcontent; if (androidbitmap_lockpixels(env, outbmp,(void**)&bmpcontent)...
Read more

android - org.xmlpull.v1.XmlPullParserException: expected: START_TAG {http://schemas.xmlsoap.org/soap/envelope/}Envelope -

i trying hit soap api in application login purpose , getting above mentioned error , can 1 tell me going wrong , first time soap apis. here code hit soap :- vector<object> args = new vector<object>(); hashtable<string, object> hashtable = new hashtable<string, object>(); hashtable.put("email", "mss.siddhart28@gmail.com"); hashtable.put("password", "siddharth"); args.add(hashtable); soapserializationenvelope envelope = new soapserializationenvelope( soapenvelope.ver11); envelope.dotnet = true; envelope.xsd = soapserializationenvelope.xsd; envelope.enc = soapserializationenvelope.enc; (new marshalhashtable()).register(envelope); httptransportse androidhttptransport = new httptransportse( "http://tempuri.org/", 15000); androidhttptransport.debug = true; string result = ""; try { soapobject request = new soapobject("http:...
Read more

python - How to remove the Xframe Options header in django? -

i have made page has iframe . inside iframe want show multiple different links article facebook, or news, or youtube video or other possible url. but, due xframe header, unable so. referred following link: https://docs.djangoproject.com/en/1.8/ref/clickjacking/ , django xframeoptionsmiddleware (x-frame-options) - allow iframe client ip but didn't help. my settings.py file's middleware_classes is: middleware_classes = ( 'django.contrib.sessions.middleware.sessionmiddleware', 'django.middleware.common.commonmiddleware', 'django.middleware.csrf.csrfviewmiddleware', 'django.contrib.auth.middleware.authenticationmiddleware', 'django.contrib.auth.middleware.sessionauthenticationmiddleware', 'django.contrib.messages.middleware.messagemiddleware', 'django.middleware.clickjacking.xframeoptionsmiddleware', ) from http://django-secure.readthedocs.org/en/latest/middleware.html , found using ...
Read more