3a9aa03aab
The data type `NUMBER(p,s)` of oracle has some different of doris decimal type in semantics. For Oracle Number(p,s) type： 1. if s<0 , it means this is an Interger. This `NUMBER(p,s)` has (p+|s| ) significant digit, and rounding will be performed at s position. eg: if we insert 1234567 into `NUMBER(5,-2)` type, then the oracle will store 1234500. In this case, Doris will use int type (`TINYINT/SMALLINT/INT/.../LARGEINT`). 2. if s>=0 && s<p , it just like doris Decimal(p,s) behavior. 3. if s>=0 && s>p, it means this is a decimal(like 0.xxxxx). p represents how many digits can be left to the left after the decimal point, the figure after the decimal point s will be rounded. eg: we can not insert 0.0123456 into `NUMBER(5,7)` type, because there must be two zeros on the right side of the decimal point, we can insert 0.0012345 into `NUMBER(5,7)` type. In this case, Doris will use `DECIMAL(s,s)` 4. if we don't specify p and s for `NUMBER(p,s)` like `NUMBER`, the p and s of `NUMBER` are uncertain. In this case, doris can not determine p and s, so doris can not determine data type.
109 lines
2.3 KiB
SQL
109 lines
2.3 KiB
SQL
-- Licensed to the Apache Software Foundation (ASF) under one
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-- or more contributor license agreements. See the NOTICE file
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-- distributed with this work for additional information
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-- regarding copyright ownership. The ASF licenses this file
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-- to you under the Apache License, Version 2.0 (the
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-- "License"); you may not use this file except in compliance
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-- with the License. You may obtain a copy of the License at
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--
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-- http://www.apache.org/licenses/LICENSE-2.0
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--
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-- Unless required by applicable law or agreed to in writing,
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-- software distributed under the License is distributed on an
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-- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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-- KIND, either express or implied. See the License for the
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-- specific language governing permissions and limitations
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-- under the License.
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create table doris_test.student (
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id number(5),
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name varchar2(20),
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age number(2),
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score number(3,1)
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);
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create table doris_test.test_num (
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id int,
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n1 number,
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n2 number(38),
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n3 number(9,2),
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n4 int,
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n5 smallint,
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n6 decimal(5,2),
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n7 float,
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n8 float(2),
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n9 real
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);
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create table doris_test.test_int (
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id int,
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tinyint_value1 number(2,0),
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smallint_value1 number(4,0),
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int_value1 number(9,0),
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bigint_value1 number(18,0),
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tinyint_value2 number(3,0),
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smallint_value2 number(5,0),
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int_value2 number(10,0),
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bigint_value2 number(19,0)
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);
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create table doris_test.test_char (
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id int,
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country char,
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city nchar(6),
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address varchar2(4000),
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name nvarchar2(6),
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remark long
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);
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create table doris_test.test_raw (
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id int,
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raw_value raw(20),
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long_raw_value long raw
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);
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create table doris_test.test_date (
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id int,
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t1 date,
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t2 interval year(3) to month,
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t3 interval day(3) to second(6)
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);
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create table doris_test.test_timestamp(
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id int,
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t1 date,
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t2 timestamp(6),
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t3 timestamp(9),
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t4 timestamp,
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t5 interval year(3) to month,
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t6 interval day(3) to second(6)
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);
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create table doris_test.test_insert(
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id varchar2(128),
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name varchar2(128),
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age number(5)
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);
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create table doris_test.test_number(
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id number(11) not null primary key,
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num1 NUMBER(5,2),
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num2 NUMBER(5, -2),
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num4 NUMBER(5,7)
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);
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create table doris_test.test_number2(
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id number(11) not null primary key,
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num1 NUMBER(38, -5)
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);
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create table doris_test.test_number3 (
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id number(11) not null primary key,
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num1 NUMBER(38, -84)
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);
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create table doris_test.test_number4 (
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id number(11) not null primary key,
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num1 NUMBER(5,-7)
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);
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