how convert toludin in benzoic acid3 6697
Explain model-based method?
Explain the characteristics of oracle dba?
Is java jre still free?
Define encoding or serialization??
what are the three groups involved in information sharing?
How do I update activex in ie11?
What is pl/sql table? Why it is used?
Define max and min heap, also the search time of heap.
what is common type system?
What is a trigger and its types?
Explain life cycle of react js component?
Which function is used in php to count the total number of rows returned by any query?
What is keyword in oop?
How do you delete duplicates in sql query using rowid?
For a webbased application:- what should be code in expert veiw, for retrieving a single column name "username" from a server and checking whether exported "username" from datatable doesn't exist in server. suppose i have saved in excelsheet a username="gayatri" , which is exported, then checked for whether this username "gayatri" exist in server database or not ? if exist then allow to enter new username, which should be again checked for in loop , or else come out of loop and enter a distinct "username". plz let me have this answer in my id firstname.lastname@example.org