@@ -25,7 +25,7 @@ BEGIN TRANSACTION;
2525update datatypes
2626 set
2727 name = ' Text' ,
28- description = ' A unicode string '
28+ description = ' A special data type for very long sequences of character. '
2929 where id = (select id systemtype from datatypes where systemtype = ' String' and name = ' text'
3030 order by id
3131 limit 1 );
@@ -37,7 +37,7 @@ update datatypes
3737update datatypes
3838 set
3939 name = ' String' ,
40- description = ' A unicode string '
40+ description = ' A sequence of characters, such as letters, numbers, or symbols (e.g., IDs). '
4141 where id = (select id systemtype from datatypes where systemtype = ' String' and name = ' string'
4242 order by id
4343 limit 1 );
@@ -65,7 +65,7 @@ select id from datatypes where SystemType like 'Int%';
6565update datatypes
6666set
6767name = ' Integer' ,
68- description = ' An 64 bit integer number '
68+ description = ' A data type for whole numbers. In this case, it corresponds to Int64, a 64- bit integer that can represent large values. '
6969where id = (select id systemtype from datatypes where systemtype = ' Int64'
7070order by id
7171limit 1 );
@@ -89,7 +89,7 @@ select id from datatypes where SystemType = 'Double';
8989update datatypes
9090set
9191name = ' Floating Point Number' ,
92- description = ' A precise real number with a restricted range '
92+ description = ' A floating-point number with double precision (for decimal values, e.g., 3.14159). '
9393where id = (select id systemtype from datatypes where systemtype = ' Double'
9494order by id
9595limit 1 );
@@ -112,23 +112,23 @@ select * from datatypes where systemtype = 'DateTime';
112112update datatypes
113113set
114114name = ' Date and Time' ,
115- description = ' A date with / or time'
115+ description = ' A data type for storing both a calendar date and a time. '
116116where id = (select id systemtype from datatypes where systemtype = ' DateTime' and name = ' datetime'
117117order by id
118118limit 1 );
119119
120120update datatypes
121121set
122122name = ' Date' ,
123- description = ' A date'
123+ description = ' A data type for storing a calendar date without time. '
124124where id = (select id systemtype from datatypes where systemtype = ' DateTime' and name = ' date'
125125order by id
126126limit 1 );
127127
128128update datatypes
129129set
130130name = ' Time' ,
131- description = ' A time'
131+ description = ' A data type for storing a time of day without a date. '
132132where id = (select id systemtype from datatypes where systemtype = ' DateTime' and name = ' time'
133133order by id
134134limit 1 );
@@ -150,7 +150,7 @@ where datatyperef in (select id from datatypes where SystemType = 'DateTime');
150150update datatypes
151151set
152152name = ' Boolean' ,
153- description = ' A boolean value '
153+ description = ' A logical data type with only two possible values: true or false; 0 or 1. '
154154where id = (select id systemtype from datatypes where systemtype = ' Boolean'
155155order by id
156156limit 1 );
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