The concept of cursor is very important for the database. Cursor enables a more flexible manipulation of data, returningcursor
Description: Attach the action of computing expression to a cursor and return the original cursor. Syntax: cs.(x) Note: cursor,expression
Here’s how to use cursor() function.cursor
The f. open() function is used to open a composite table saved as a file: A B 1 =file("D:/file/dw/employees.ctx") 2 composite table,access,create,attach,cursor,icursor,index,joinx
Description: Connect to Amazon DynamoDB. Syntax: dyna_open(dyna_url,region) dyna_open(dyna_url,region) Access local Dyconnect,dynamodb,cursor
Description: Execute the get command and return a table sequence or a cursor. Syntax: es_get(fd, endpoint, entity，headerexecute get,table sequence,cursor
Description: Execute the post command and return a table sequence or a cursor. Syntax: es_post(fd, endpoint, entity，headexecute post,table sequence,cursor
Description: Query a HBase database and return result as a cursor or a table sequence. Syntax: hbase_scan(client,tableNaquery,hbase database,cursor,table sequence
Description: Create a Hive database connection. Syntax: hive_open(hdfsUrl,thriftUrl,dbname,hdfsUserName) Note: This extecreate,hive database,external library function,cursor
Description: Query a Hive database and return the result as a cursor. Syntax: hive_cursor(con,sql) Note: This external lquery,hive database,cursor