# index_name will identify your index for future reference
CREATE INDEX index_name ON table_name (column_name);
create index your_index_name on your_table_name(your_column_name) using HASH;
or
create index your_index_name on your_table_name(your_column_name) using BTREE;
CREATE INDEX index_name ON table_name(column_name);
CREATE INDEX curd_user_email_index ON user_crud(email);
Ex. Explain select * from user where name = ‘kinjal’ #here explain is used for finding that how much time it takes to find name, how much rows in search.