||The MATCH clause is used to search the data with a specified pattern.
||The OPTIONAL MATCH is the same as MATCH clause, the only difference between both is that the later one can use NULLS in the case of missing part of the pattern.
||The WHERE clause is used to add contents at the specific location to the CQL queries.
||The START clause is used to find the starting points through the legacy indexes.
||The LOAD CSV clause is used to import data from CSV files.