Oracle varchar2最大支持长度
经常有人问oracle varchar2最大支持长度为多少?其实这个叫法不太准确,varchar2分别在oracle的sql和pl/sql中都有使用,oracle 在
dw@dw>drop table idb_varchar2; 表已删除。 dw@dw>create table idb_varchar2 2 (id number, 3 name varchar2(4000 char)); 表已创建。 dw@dw>insert into idb_varchar2 values(1,lpad('中',32767,'中')); 已创建 1 行。 dw@dw>insert into idb_varchar2 values(2,lpad('a',32767,'b')); 已创建 1 行。 dw@dw>commit; 提交完成。 dw@dw>select id,lengthb(name),length(name) from idb_varchar2; ID LENGTHB(NAME) LENGTH(NAME) ---------- ------------- ------------ 1 4000 2000 2 4000 4000 已选择2行。
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