Results of 1 - 3 of about 3 for ducks (0.001 sec.)
- Merge Statement for SCD Type 2 11924
- This is a practical, step-by-step guide to using DuckDB's MERGE statement (introduced in v1.4.0) to perform upserts and build Slowly Changing Dimension Type 2 (SCD Type 2) tables . Type 2 SCDs let you keep full historical versions of record
...uisites Basic SQL knowledge Key Terminology Term Meaning Target table The main/master table you are updating (e.g., master_ducks ) Source table The incoming/new data (e.g., incoming_ducks ) MERGE INTO Specifies the target table USING Specifies the sou...ge_action Optional: shows what happened to each row (INSERT/UPDATE/DELETE) Build an SCD Type 2 Dimension Table We'll track ducks and preserve history whenever their name, breed, or location changes. DuckDB has a frontend notebook UI, this is great for...: Create the Incoming (source) Table This table represents today's transactional data. CREATE TABLE IF NOT EXISTS incoming_ducks ( duck_id INTEGER, duck_name VARCHAR, breed VARCHAR, location VARCHAR, begin_date DATE, end_date DATE, is_current BOOLEAN... - https://man.mtool.work/duckdb/2.0/guides/sql_features/merge.html
- Output Formats 8129
- The .mode dot command may be used to change the appearance of the tables returned in the terminal output. In addition to customizing the appearance, these modes have additional benefits. This can be useful for presenting DuckDB output elsew
...the .mode dot command with an argument to set the output format. .mode markdown SELECT 'quacking intensifies' AS incoming_ducks; | incoming_ducks | |----------------------| | quacking intensifies | The output appearance can also be adjusted with the... - https://man.mtool.work/duckdb/2.0/clients/cli/output_formats.html
- PEG Parser 7831
- New Starting with DuckDB 2.0, the PEG parser is the default parser. In earlier versions it was an experimental, opt-in feature enabled with enable_peg_parser() , which is no longer required or available. DuckDB uses a parser based on PEG (
...gestions The PEG parser is used to generate suggestions. You can cycle through the options using TAB : «animals_db» D FROM ducks WHERE habitat IS IS ISNULL ILIKE ⌊IN⌋ INTERSECT LIKE Extensible Grammar Because the grammar is part of the parser, extensi... - https://man.mtool.work/duckdb/2.0/sql/peg_parser.html
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