How to delete record from Aerospike?

How to delete record from Aerospike?

Use the Aerospike Go client to delete records from the Aerospike database. This deletes the key mykey in namespace test within set myset.

What is delete record?

In the database structured query language (SQL), the DELETE statement removes one or more records from a table. A subset may be defined for deletion using a condition, otherwise all records are removed.

How do I delete an AQL file?

The SQL DELETE Query is used to delete the existing records from a table. You can use the WHERE clause with a DELETE query to delete the selected rows, otherwise all the records would be deleted.

What is set in Aerospike?

An Aerospike “set” is similar to a table in a relational database. One of the big difference is that with Aerospike, you do not need to predefine a schema. Thus, sets are created dynamically and implicitly on first record insertion in set. Contents. Adding and Removing a Set Index.

How do I query Aerospike?

Create a Query Application

1. Install and configure the Aerospike server.
2. Create indexes on a bin.
3. Insert records within an indexed bin.
4. Construct a predicate (a WHERE clause), make the query request, and process returned records.

How do I use Aerospike?

Download and install the Aerospike Server. Use the Benchmarks tool to run a default load against the cluster….Read the following sections to understand how to:

1. Connect to an Aerospike cluster.
2. Read and write a user record.
3. Create a secondary index.
4. Run User-Defined Functions (UDFs).

How do I delete a table record?

To remove one or more rows in a table:

1. First, you specify the table name where you want to remove data in the DELETE FROM clause.
2. Second, you put a condition in the WHERE clause to specify which rows to remove. If you omit the WHERE clause, the statement will remove all rows in the table.

How do I delete one record?

Deleting a single record Click on the view icon to open the view modal or double click on a single record to open the modal. Click on the Delete link to delete the submission. When you click on the delete link, a Confirm Delete window pops up where you should confirm deletion of the record.

How do I delete a specific record in SQL?

SQL DELETE Statement

1. DELETE FROM table_name WHERE condition;
2. Example. DELETE FROM Customers WHERE CustomerName=’Alfreds Futterkiste’;
3. DELETE FROM table_name;
4. Example. DELETE FROM Customers;

How is data stored in Aerospike?

The record data is stored in bins. Bins consist of a name and a value. Bins do not specify the data type, rather the data type is defined by the value contained in the bin. This dynamic data typing provides flexibility in the data model.

How do I check my data on Aerospike?

These methods get data from the Aerospike database:

1. get() : Reads specified bins in a record.
2. exists() : Checks whether record metadata exists.
3. getMany() : Reads a batch of records.
4. existsMany() : Retrieve metadata for a batch records.

Is there a way to delete all bins in aerospike?

Take a look at this discussion forum for a good list of methods to delete meta data of bins in Aerospike. Aerospike separates the data into two parts: index and value. The index is always stored in DRAM, the value can be stored in either SSD or DRAM (with or without disk for persistence).

Where does the data go in aerospike when it is deleted?

Aerospike separates the data into two parts: index and value. The index is always stored in DRAM, the value can be stored in either SSD or DRAM (with or without disk for persistence). When a record is deleted, the reference to it is removed from the index.

What happens to the Index in NoSQL aerospike?

The index is always stored in DRAM, the value can be stored in either SSD or DRAM (with or without disk for persistence). When a record is deleted, the reference to it is removed from the index. The actual data is not removed from the disk. Another process will find that the data on disk is not being used and reclaim the space.