A Winkler titration to determine the concentration of dissolved oxygen in a water sample. The dissolved oxygen has been converted to an equivalent amount of iodine, which is being titrated with thiosulfate using a starch indicator.
A Canonical Name record (abbreviated as CNAME record) is a type of resource record in the Domain Name System (DNS) used to specify that a domain name is an alias for another domain, the canonical domain.his confusion is specifically mentioned in RFC 2181, Clarifications to the DNS Specification.. The left-hand label is an alias for the right-hand side (the RDATA portion), which is (or should be) a canonical name.
In the above query, the column first_name is given a alias as 'name'. So when the result is displayed the column name appears as 'Name' instead of 'first_name'. Aliases for tables: In the above query, alias 's' is defined for the table student_details and the column first_name is selected from the table.