1. SQL Tag Library

2. SQL TL Sql tag library depends on data sources to obtain connections.
(1) Getting a database connection
(2) Accessing a database.
<sql:………./>
Tags available in SQL Tag Library
(1) setDataSource
(2) query, dateParam, param, transaction, update

3. <sql :setDataSource>
-allows an application to connect to a database.
<sql:setDataSource url=“ ”
driver=“ ”
user=“ ”
password=“”
var=“ ”
Scope=“”/>

4. <sql:query> Syntax: <sql:query dataSource=“” sql=“”
startRow=“”
maxRows=“”
var=“”
Scope=“”
/>

5. <sql:update> <sql:update dataSource=“” sql=“” var=“” Scope=“”
/>

6. SQL Tags (Transaction Handling)
<sql:transaction dataSource=“”
isolation=“read_committed”
/ ”read_uncommitted”
/ “repeatable_read”
/ “serializable”
>
<sql:query> or <sql:update> statements
</sql:transaction>

7. <sql : param>
<sql :param value= “value” />

8. <sql : transaction datasource = “${datasource}”> <sql : update> UPDATE acc SET bal = bal - ? WHERE accno = ? <sql : param value = “${transferamt}” /> <sql : param value = “${accFrom}” /> </sql : update> sql : update> </sql :transaction>