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DuckDB_% Metadata Functions – DuckDB 12205: This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview ... nternal true if this column built-in, false if it is user-defined. BOOLEAN column_default The default value of the column (expressed in SQL) VARCHAR is_nullable true if the column can hold NULL values; false if the column cannot hold NULL -values. BOOLEAN ... units in the numeric_precision column. For integral and approximate numeric types, this is 2 , indicating the precision is expressed as a number of bits. For the decimal type this is 10 , indicating the precision is expressed as a number of decimal positi ... alues are CHECK , FOREIGN KEY , PRIMARY KEY , NOT NULL , UNIQUE . VARCHAR constraint_text The definition of the constraint expressed as a SQL-phrase. (Not necessarily a complete or syntactically valid DDL-statement.) VARCHAR expression If constraint is a ...; https://man.mtool.work/duckdb/1.3/sql/meta/duckdb_table_functions.html

CASE Expression – DuckDB 9394: This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview ... gramming languages ( CASE WHEN cond THEN a ELSE b END is equivalent to cond ? a : b ). With a single condition this can be expressed with IF(cond, a, b) . CREATE OR REPLACE TABLE integers AS SELECT unnest ([ 1 , 2 , 3 ]) AS i ; SELECT i , CASE WHEN i > 2 ... e Documentation Expressions Copy Markdown Expression performs based form identical ternary used many programming languages expressed 関連するページ ALTER TABLE Statement NULL Values TRY expression Executing SQL in Python Loops Star Expression See this pag ...; https://man.mtool.work/duckdb/1.3/sql/expressions/case.html

Writing Tests – DuckDB 7785: This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview ... ecause that makes those components more difficult to change later on. As such, almost all of our tests can (and should) be expressed in pure SQL. There are certain exceptions to this, which we will discuss in Catch Tests . However, in most cases you shoul ...; https://man.mtool.work/duckdb/1.3/dev/sqllogictest/writing_tests.html

FROM and JOIN Clauses – DuckDB 7581: This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview ... ame size, the rows may have a natural correspondence based on their physical order. In scripting languages, this is easily expressed using a loop: for ( i = 0 ; i < n ; i ++ ) { f ( t1 . a [ i ], t2 . b [ i ]); } It is difficult to express this in standar ...; https://man.mtool.work/duckdb/1.3/sql/query_syntax/from.html

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