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- Import Data 11705
- Overview The JDBC driver offers two ways to load data into DuckDB in bulk: the high-performance Appender and a JDBC batch writer. This page describes both and when to use each. Appender The Appender is available in the DuckDB JDBC driver vi
...FAULT_SCHEMA, "tbl")) { appender.beginRow(); appender.append(10); appender.append(3.2); appender.append("hello"); appender.endRow(); appender.beginRow(); appender.append(20); appender.append(-8.1); appender.append("world"); appender.endRow(); } } An ap...str"); // select the UNION member named "str" appender.append("hello"); // its VARCHAR value appender.endUnion(); appender.endRow(); } For a LIST or ARRAY column, pass a Java array as a single value, optionally with a boolean null mask where true marks...2, 3}); // a LIST value appender.append(new int[] {4, 5}, new boolean[] {false, true}); // second element is NULL appender.endRow(); } For a MAP column, pass a Java Map as a single value; each entry is written as a key/value pair, and a null map is app... - https://man.mtool.work/duckdb/2.0/clients/java/data_import.html
- Appender 10318
- The Appender can be used to load bulk data into a DuckDB database. It is available in the C, C++, Go, Java, Julia, Node.js, Python, and Rust clients. This page describes how the Appender behaves across clients and shows a minimal example in
...table, adds rows, and then flushes. The examples below insert into a table with an integer and a string column. C++ The AppendRow function is the easiest way of appending data. It uses recursive templates to allow you to put all the values of a single...ection con(db); con.Query("CREATE TABLE people (id INTEGER, name VARCHAR)"); Appender appender(con, "people"); appender.AppendRow(1, "Mark"); Rows can also be individually constructed using the BeginRow , EndRow , and Append methods. This is done inter...nally by AppendRow , and hence has the same performance characteristics: appender.BeginRow(); appender.Append<int32_t>(2); appender.Append<st... - https://man.mtool.work/duckdb/2.0/data/appender.html
- Node.js Client (Neo) 7674
- Installation To use the DuckDB Node.js client, visit the Node.js installation page . The latest stable version of the DuckDB Node.js (Neo) client is 2.0.0. An API for using DuckDB in Node.js . The primary package, @duckdb/node-api , is a hi
...er = await connection.createAppender('target_table'); appender.appendInteger(42); appender.appendVarchar('duck'); appender.endRow(); appender.appendInteger(123); appender.appendVarchar('mallard'); appender.endRow(); appender.flushSync(); appender.appen...dInteger(17); appender.appendVarchar('goose'); appender.endRow(); appender.closeSync(); // also flushes Append Data Chunk await connection.run( `create or replace table target_table(i i... - https://man.mtool.work/duckdb/2.0/clients/node_neo/overview.html
- PHP Client 7249
- The DuckDB PHP client is a tertiary client and is maintained by a third-party. Client API for PHP, focused on performance. The DuckDB PHP client uses the official C API internally through FFI , achieving good benchmark results. This library
...; for ($i = 0; $i < 100; ++$i) { $appender->append(rand(1, 100000)); $appender->append('string-'.rand(1, 100)); $appender->endRow(); } $appender->flush(); DuckDB-Powerful DuckDB provides some amazing features. For example, you can query remote files di... - https://man.mtool.work/duckdb/2.0/clients/tertiary_clients/php.html
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