align #7393

pingcap · Feb 8, 2022 · 0692dfc · 0692dfc
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diff --git a/data-type-date-and-time.md b/data-type-date-and-time.md
@@ -82,7 +82,7 @@ Invalid `DATE`, `DATETIME`, `TIMESTAMP` values are automatically converted to th
 
 ### `DATE` type
 
-`DATE` only contains date-portion and no time-portion, displayed in `YYYY-MM-DD` format. The supported range is '1000-01-01' to '9999-12-31':
+`DATE` only contains date-portion and no time-portion, displayed in `YYYY-MM-DD` format. The supported range is '0000-01-01' to '9999-12-31':
 
 ```sql
 DATE
@@ -102,7 +102,7 @@ TIME[(fsp)]
 
 ### `DATETIME` type
 
-`DATETIME` contains both date-portion and time-portion. Valid values range from '1000-01-01 00:00:00.000000' to '9999-12-31 23:59:59.999999'.
+`DATETIME` contains both date-portion and time-portion. Valid values range from '0000-01-01 00:00:00.000000' to '9999-12-31 23:59:59.999999'.
 
 TiDB displays `DATETIME` values in `YYYY-MM-DD HH:MM:SS[.fraction]` format, but permits assignment of values to `DATETIME` columns using either strings or numbers.  An optional fsp value in the range from 0 to 6 may be given to specify fractional seconds precision. If omitted, the default precision is 0:
 

diff --git a/data-type-numeric.md b/data-type-numeric.md
@@ -161,7 +161,7 @@ The meaning of the fields:
 
 ### `DECIMAL` type
 
-`DECIMAL` and its alias `NUMERIC` stores a packed "exact" fixed-point number. M is the total number of digits (the precision), and D is the number of digits after the decimal point (the scale). The decimal point and (for negative numbers) the - sign are not counted in M. If D is 0, values have no decimal point or fractional part. The maximum number of digits (M) for DECIMAL is 65. The maximum number of supported decimals (D) is 30. If D is omitted, the default is 0. If M is omitted, the default is 10.
+`DECIMAL` and its alias `NUMERIC` stores a packed "exact" fixed-point number. M is the total number of digits (the precision, the number of integer digits + the number of decimal digits), and D is the number of digits after the decimal point (the scale). The decimal point and (for negative numbers) the - sign are not counted in M. If D is 0, values have no decimal point or fractional part. The maximum number of digits (M) for DECIMAL is 65. The maximum number of supported decimals (D) is 30. If D is omitted, the default is 0. If M is omitted, the default is 10.
 
 ```sql
 DECIMAL[(M[,D])] [UNSIGNED] [ZEROFILL]