I created an ENUM type in PostgreSQL tribool. I created a table column with tribool type. Now I am writing a function with tribool type parameters. However, pgAdmin is only in the drop-down list Tr
Tag: type
Day41 – numeric type, integrity constraint
day41 Numeric type Integer type
mysql> create table t1(id tinyint); # The default is signed, that is, there is a sign before the number Unsigned setting mysql> create table t1(id tinyint uns
Enforce PostgreSQL type conversion using Jooq tools
Is there a way to configure the JOOQ tool to use the PostgresSQL database’s ‘forcedTypes’ tag to convert smallint to Boolean without providing org.jooq.Converter implementation?
This is what
PostgreSQL – How to specify different column types according to the database type of Haskell GROUNDHOG?
Using the Groundhog library in Haskell, I want to implement a column type that uses “uuid” when the backend is Postgresql, otherwise just use “varchar” for any other backends. Although this should
What type of NOSQL database is best suited to store hierarchical data?
What type of NoSQL database is best for storing hierarchical data?
For example, I want to store a forum post with a tree structure:
original post
+ re: original post< br /> + re: origi
PostgreSQL – the inconsistency between the month, Japanese and seconds of the interval data type
I understand why postgresql uses month, day and second fields to represent the sql interval data type. If it involves daylight saving time adjustments, the length of a month is not always the same.
AOP Alliance Notification Type and Spring Writing Agent Semi-Automatic
First, cglib is more powerful
2. Spring core jar package
3. AOP Alliance Notice
Third, the code implements Spring semi-automatic proxy
1. Aspects surrounding notifications
.NET – uses a CLR type on a Visual Basic key (such as `string`) (for example,` system.string` or `[string]`) Do you have any imagination?
We all know that in C#, there is no difference whether you use String (CLR class) or string (C# keyword). For more information, please refer to the following question
> What is the difference
.NET 4.0 Dictionary: Value Class Type button for invalid ‘null’ check. Is this harmful?
For example:
.method private hidebysig instance void Insert(!TKey key, !TValue’value’, bool add ) cil managed
{
.maxstack 3
.locals init (
[0] int32 num,
[1] int32 num2,
[2] int32 num3,
The meaning of% TYPE in the Oracle stored procedure
Transfer:
Example:
CREATE OR REPLACE
procedure getDeptById
(
v_deptno in dept.deptno%type
)
is
v_dname dept.dname%type;
v_loc dept.loc%type;
begin
select dname,loc into v_dname,v_loc fr