lookup

问题 Let's say we need to check if a jsonb column contains a particular value matching by a substring in any of the value (non-nested, only first level). How does one effectively optimize a query to search entire JSONB column (this means every key) for a value? Is there some good alternative to doing ILIKE %val% on jsonb datatype casted to text? jsonb_each_text(jsonb_column) ILIKE '%val%' As an example consider this data: SELECT '{ "col1": "somevalue", "col2": 5.5, "col3": 2016-01-01, "col4":

问题 I am working on a file that has two columns. The first column has simple three word sentences. The second one has single word keywords. I’d like to be able search the first column, find all sentences that have a specific keyword and list them as delimited values next to the keyword. Assuming a pipe (“|”) as a delimiter, I’d get something like this: First Column Very blue sky. Red sky tonight. Blue sky forever. My red car. Red red red. Second column is as follows: Second Column Blue Red

问题 I have an auto-generated list of information that gives me the name and weight of 3 different animals. "Cat" , "Dog" and "Whale" . I need a vlookup or index-match formula to return to me the respective weight if given name and animal type and return error if it doesn't match. I've found the solution for lookup between values (i.e. numbers) but can't seem to get it to work for string values. Input: A B 1 Cat Weight 2 Bob 1.5 3 Tommy 2.5 4 Peter 3.5 5 Adam 4.5 6 Mary 5.5 7 Dog 8 Bob 14 9 Adam

问题 So what I know about CRC, and also did a Java implementation is this: Having an initial message as a 16-bit polynomial, for instance 0x0617 65 0000.0110.0001.0111 this one gets another 16 of 0 bits 0000.0110.0001.0111|0000.0000.0000.0000 Then, having the divisor, 0x1021 0001.0000.0010.0001 (0, 5, 12) We allign it at the start of each "1" in our initial message, and do XOR between the bits, until there are no more 1s in the initial message. In total, there will be 6 XORs in our example. The

问题 In my application I need to lookup jndi resources for database connection. I have an EAR which contain my EJB project with remote and stateless ejb: ABean.jar Reading Using Spring and Hibernate with WebSphere Application Server I defined in the application.xml of EAR project: <module> <ejb>ABean.jar</ejb> </module> <resource-ref> <res-ref-name>jdbc/b</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>Container</res-auth> <res-sharing-scope>Shareable</res-sharing-scope> <

问题 I have a 2 variable 100x100 data table in excel. I need to have a function that returns all the possible sets of variables that yield a given target value. What I am looking at is some kind of a reursive 2 dimensional lookup function. Can someone point me in the right direction? 回答1: It can be done without VBA, fairly compactly, like so. Suppose your 100x100 table is in B2:CW101, and we put a list of numbers 1 to 100 down the left from A2 to A101, and again 1 to 100 across the top from B1 to

问题 @SpringBootApplication public class SampleTomcatJndiApplication { public static void main(String[] args) { SpringApplication.run(SampleTomcatJndiApplication.class, args); } @Bean public TomcatEmbeddedServletContainerFactory tomcatFactory() { return new TomcatEmbeddedServletContainerFactory() { @Override protected TomcatEmbeddedServletContainer getTomcatEmbeddedServletContainer( Tomcat tomcat) { tomcat.enableNaming(); return super.getTomcatEmbeddedServletContainer(tomcat); } @Override

问题 I have a dataframe that contains employee information such as Name, performance_factor_1 and performance_factor_2 . I have another dataframe where I get pay based on performance_factor_1 and performance_actor_2. df1 Name pf1 pf2 pf3 Adam 14.6 8.9 59 Bob 13.2 9 75 Charlie 11.1 9.1 89 Dylan 14.6 9 97 Eric 11.1 8.8 105 Fedderick 12.5 9.2 69 df2 The rows of dataframe 2 are performance_factor_1 and columns are performance_factor_2. pf1 8.8-8.9 9.0-9.2 9.3-9.4 9.5-9.6 9.7-10 11.1 to 14 100 200 300

问题 Like many I am new to R. I have a large data set (500M+ rows) which I have fread into a data.table logStats which has data like the following : head(logStats,15) time pid mean 1: 2014-03-10 00:00:00 998 3.570000 2: 2014-03-10 00:00:00 11 4.090000 3: 2014-03-10 00:00:00 345 3.380000 4: 2014-03-10 00:05:00 998 4.866667 5: 2014-03-10 00:05:00 11 3.677778 6: 2014-03-10 00:05:00 345 4.487500 7: 2014-03-10 00:10:00 345 4.833333 8: 2014-03-10 00:10:00 998 4.333333 9: 2014-03-10 00:10:00 11 6.977778

问题 I have a lookup table say cities with fields CityId, CityName CityId CityName 1 New York 2 San Francisco 3 Chicago I have an orders table which has fields: CityId, CustId, CompletedOrders, PendingOrders CityId CustId CompletedOrders PendingOrders 1 123 100 50 2 123 75 20 I want a table/report that lists orders details of a given customer in all cities, i.e. the result I need is: CityId CityName CustId CompletedOrders PendingOrders 1 New York 123 100 50 2 San Francisco 123 75 20 3 Chicago 123