mariadb及mssql的对比用法

一、查询表字段：
mssql：select syscolumns.name from syscolumns where id=(select max(id) from sysobjects where xtype='u' and name='human_basic_data') order by syscolumns.colid

mariadb：SELECT COLUMN_NAME FROM information_schema.`COLUMNS` where TABLE_SCHEMA like 'TCDHRMS' and TABLE_NAME like 'human_basic_data'

二、索引/主键：
1.mssql：
SELECT OBJECT_ID,OBJECT_NAME(i.[object_id]) AS tableName, NAME, i.is_disabled
FROM sys.indexes AS i WHERE i.[object_id]=OBJECT_ID('human_basic_data') --查询索引
ALTER INDEX IX_human_basic_data_1 ON human_basic_data disable --关闭索引
drop INDEX IX_human_basic_data on human_basic_data --删除索引
alter table human_basic_data alter column [work_no] varchar(6) not null --字段不为空
alter table human_basic_data add constraint work_no_1 primary key (work_no);--创建主键