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MySQL returns the wrong result. CREATE TABLE t1 (f1 time, f2 time); insert into t1 values ('09:00:00','12:00:00'); mysql> select f1, f2, cast(f1 as datetime), cast(cast(f1 as TIME) as datetime) from t1; +---+---+---+---+ | f1 | f2 | cast(f1 as datetime) | ca...
SET TIMEZONE SET VARIABLE SYNC CACHE (Azure Databricks 上的 Delta Lake) CLONE (Azure Databricks 上的 Delta Lake) CONVERT TO DELTA (Azure Databricks 上的 Delta Lake) COPY INTO (Azure Databricks 上的 Delta Lake) CREATE BLOOMFILTER INDEX (Azure Databricks 上的 Delta Lake) DELETE FROM (Azure Da...
--创建表createtablemf_dot (dcm1decimal(38,18), dcm2decimal(38,18));--insert数据insertintotablemf_dotvalues(12.45500BD,12.3400BD);--Flag为true或者不设置时setodps.sql.decimal.tostring.trimzero=true;--去掉小数点后末尾的零selectcast(round(dcm1,3)asstring),cast(round(dcm2,3)asstring)frommf...
SELECT CAST('<Name><FName>Carol</FName><LName>Elliot</LName></Name>' AS XML) See Create Instances of XML Data for more examples.G. Use CAST and CONVERT with datetime dataStarting with GETDATE() values, this example displays the current date and time, uses CAST to change the current...
有关 data-type的描述,请参阅 CREATE TABLE。 (对于跨操作系统的可移植性,在指定浮点数据类型时,请使用 REAL 或 DOUBLE 而不是 FLOAT。) 对受支持数据类型的限制基于指定的强制类型转换操作数。 对于作为 表达式的强制类型转换操作数,请参阅 表2 以获取基于强制类型转换操作数的数据类型受支持的目标数据类型。
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select cast(current_timestamp as date); 1. 2. 3. 示例: create table t_fun(id string,birthday string,salary string) row format delimited fields terminated by ','; select id,cast(birthday as date) as bir,cast(salary as float) from t_fun; ...
MONEY | SMALLMONEY) CAST(expr AS DATE) CAST(expr AS TIME) CAST(expr AS POSIXTIME) CAST(expr AS TIMESTAMP | DATETIME | SMALLDATETIME) CAST(expr AS BIT) CAST(expr AS BINARY | BINARY VARYING | VARBINARY) CAST(expr AS BINARY(n) | BINARY VARYING(n) | VARBINARY(n) ) CAST(expr AS ...
仅Hologres V3.0及以上版本支持DATE、TIMESTAMP、TIMESTAMPTZ类型。 目标数据类型。 说明 如果待转换列数据不支持被转换为目标数据类型,则返回NULL。 示例 创建try_cast_test目标表并写入测试数据。 --创建目标表try_cast_test。 CREATE TABLE IF NOT EXISTS try_cast_test ( key int, value text ); --向目标...