环境: postgresql-12,pentaho kettle为9.1版本 使用kettle将一个postgresql数据拷贝到另外一个postgresql时报“字段 "id" 的类型为 uuid,...但表达式的类型为 character varying”异常,源postgresql中id字段是uuid类型,但是经过kettle后却变成了string类型,处理这个问题相对pg导入cassandra要简单些...,直接设置目的postgr...
子类型:CHARACTER 等价的PL/SQL类型:CHAR 子类型:CHARACTER VARYING 等价的PL/SQL类型:VARCHAR2 子类型:NATIONAL CHAR 等价的PL/SQL类型:NCHAR 子类型:NATIONAL CHAR VARYING 等价的PL/SQL类型:NVARCHAR2 子类型:NATIONAL CHARACTER 等价的PL/SQL类型:NCHAR 子类型:NATIONAL CHARACTER VARYING 等价的PL/SQL类型:NVARCHA...
bit varying [ (n) ] varbit variable-length bit string:变长位串 boolean bit boolean bool logical boolean (true/false):布尔值 box rectangular box on a plane bytea binary data ("byte array") character varying varchar character varying [ (n) ] varchar [ (n) ] variable-...
14 TCHAR szSQL[1024] = {0}; 15 _stprintf_s(szSQL, 1024, _T("select func_insertimage($1::bigint, $2::character varying, $3::bytea)")); 16 17 //连接GP数据库 18 PGConn* pConn = PQconnectdb(szConnStr); 19 if (CONNECTION_OK != PQstatus(pConn)) { 20 printf("GP_TestInsert...
create table toast_t1(dd character varying); alter table toast_t1 alter column dd set storage main; /d+ toast_1 Column | Type | Storage | ---+---+---+- dd | character varying | main | Access method: heap 查看Toast表的名字 -...
直接是 '123'::character varying 就转成字符串了 123::character varying 赋值 := 例如: DECLARE result character varying; result := 123; 在pgAdmin里测试代码块,需要用到匿名代码块: do $$declare a varchar; begin select max(act_id)+1 into a from ledm_admin_action; ...
create table toast_t1(dd character varying); alter table toast_t1 alter column dd set storage main; /d+ toast_1 Column | Type | Storage | ---+---+---+- dd | character varying | main | Access method: heap 查看Toast表的名字 -...
大家知道,Oracle有四种字符类型,分别是char,varchar2,nchar,nvarchar2。而PostgreSQL只有两种字符类型,分别是character (char)和 character varying(varchar)。它们之间的有什么异同呢? 1、数据最小单位 Oracle:char和varchar2的数据最小单位,默认值为BYTE,即字节数。可以修改为CHAR,则为字符。通过参数NLS_LENGTH_SEMANTI...
create function f_random_str(length INTEGER) returns character varying LANGUAGE plpgsql AS $$ DECLARE result varchar(50); BEGIN SELECT array_to_string(ARRAY(SELECT chr((65 + round(random() * 25)) :: integer) FROM generate_series(1,length)), '') INTO result; return result; END $$; 重...
create table toast_t1(dd character varying); alter table toast_t1 alter column dd set storage main; /d+ toast_1 Column | Type | Storage | ---+---+---+- dd | character varying | main | Access method: heap 查看Toast表的名字 -...