將值expr 轉換為 STRING。 此函式與 同 cast(expr AS STRING)義。 如需詳細資訊,請參閱 cast函式。語法複製 string(expr) 引數expr:可以轉換成 STRING的表達式。傳回A STRING。如果expr 不是STRING,則會將結果 STRING 指派為 的預設排序。否則,結果排序會依據 expr的定序
>SELECT'Spark'; Spark >SELECTCAST(5ASSTRING); 5 >SELECT'O\'Connell'O'Connell > SELECT 'Some\nText' Some Text > SELECT r'Some\nText' Some\nText > SELECT '서울시' 서울시 > SELECT '' > SELECT '\\' \ > SELECT r'\\' \\ ...
> SELECT typeof(5 - '3'); bigint -- Promotes STRING to least common type (INTEGER, STRING --> BIGINT) with runtime check > SELECT c1 = c2 FROM VALUES(10, '10.1') AS T(c1, c2); Invalid input syntax for type numeric: 10.1. To return NULL instead, use 'try_cast'. -- Promo...
(1e-4 as string); 1.0E-4 > SELECT cast(1e-3 as string); 0.001 > SELECT cast(12345678e7 AS STRING); 1.2345678E14 > SELECT cast(DATE'1900-12-31' AS STRING); 1900-12-31 -- Caesar no more > SELECT cast(DATE'-0044-03-15' AS STRING); -0044-03-15 > SELECT cast(DATE'100000-...
("value").cast("string")) .withColumn("newMessage",split(col("value"), " ")) .filter(col("newMessage").getItem(7).isNotNull) .select( col("newMessage").getItem(0).as("uuid"), col("newMessage").getItem(1).as("device_id"), col("newMessage").getItem(2).as("indoor_...
SELECT cast(col1 AS VARCHAR(1000)) FROM delta_table1; UseSHOW TABLEon the newly created table and it reports that the table got created, but the column isstringtype. %sql SHOW CREATE TABLE delta_varchar_table1; Click to Zoom Cause ...
UseSHOW TABLEon the newly created table and it reports astringtype. %sql SHOW CREATE TABLE delta_table1; Create a second Delta table, based on the first, and convert thestringtype column intovarchar. %sql CREATE OR REPLACE TABLE delta_varchar_table1 USING DELTA AS SELECT cast(col1 AS VAR...
time: 一天中的时间，包括小时，分和秒。可以用变量time(p)来表示秒的小数点后的数字位数（默认是0）...
问如何在databricks sql中将字符串转换为日期EN版权声明：本文内容由互联网用户自发贡献，该文观点仅代表...
loan_stats.loan_status.isin(\["Default","Charged Off","Fully Paid"])\).withColumn("bad_loan",(~(loan_stats.loan_status=="Fully Paid")).cast("string")) For grouping, you will use Aggregate transformations and for filtering use the Filter transformation. You can filter ...