Database Reference
In-Depth Information
BatchWriteItem
If we need to write data to multiple tables at the same time, then the BatchWriteItem
operation is advised whenever and wherever possible, because it distributes the write
throughput equally across all the tables. The following request tries to write two items into
Tbl_Library and one item into Tbl_Book . It is also possible to send De-
leteRequest in place of PutRequest simultaneously for a table. Have a look at the
following table:
{
"RequestItems": {
"Tbl_Library": [
{
"PutRequest": {
"Item": {
"Name":{"S":"Harvard University Library"},
"Country":{"S":"United States"},
"City":{"S":"Massachusetts"} } } },
{
"PutRequest": {
"Item": {
"Name":{"S":"Vernadsky National Library"},
"Country":{"S":"Ukraine"},
"City":{"S":"Kiev"} } } }]
"Tbl_Book": [
{
"PutRequest": {
"Item": {
"BookTitle": { "S": "SCJP" },
"Author": { "S": "Brendon" },
"Language":{ "SS": ["English"] },
"Edition": { "N": "5" } }} } ]},
"ReturnConsumedCapacity": "TOTAL"
}
The response to the previous BatchWriteItem request is shown as follows:
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