Oracle

SQL Server

Sybase

SYBASE ASE

SYBASE ASA

SYBASE IQ

DB2

1、db2fmp

2、db2vend

Access

Mysql

Change Buffer

Log Buffe

Doublewrite Buffer

mysql> SELECT CONCAT(first\_name, " ", last\_name) FROM tbl\_name

WHERE income/dependents > 10000 AND age > 30;

MariaDB

Vfp

Ingres

PostGreSQL

https://blog.csdn.net/qq_36249352/article/details/79875805

https://cloud.tencent.com/developer/information/SQLServer%E5%BA%94%E7%94%A8%E5%9C%BA%E6%99%AF

https://blog.csdn.net/junshi66/article/details/38386367

https://www.yht7.com/news/36141

https://blog.csdn.net/ever_jw/article/details/103040513

http://www.dameng.com/prod_view.aspx?TypeId=123&Id=243&Fid=t3:123:3

https://www.kingbase.com.cn/index/product.html

https://baike.baidu.com/item/Microsoft%20Office%20Access/7748166?fromtitle=ACCESS%E6%95%B0%E6%8D%AE%E5%BA%93&fromid=7894751&fr=aladdin

https://www.sohu.com/a/226133702_639793

http://www.360doc.com/content/19/0205/21/835902_813244325.shtml

https://baike.baidu.com/item/visual%20foxpro/9279955?fr=aladdin

https://www.cnblogs.com/atree/p/MySQL_PostgreSQL_Ingres_MaxDB_InterBase.html