conn execute sql

Rs. Open SQL, Conn and conn.exe cute (SQL) Use conn.exe cute (SQL)If you want to perform complex operations on the database! It is better to use Rs. Open SQL, Conn Rs. Open SQL, Conn: A record set is returned. This record set can be moved before

interface for executing SQL statements Interface function Statement interface Used to execute a static SQL statement PreparedStatement interface Used to execute precompiled SQL

Transaction operation data: (1) Eg: Assume that the Bank Transfer System Transfer from Michael Jacob's account to Mr. Luo's account of 1000 yuanThis operation takes two steps.1. Michael's account is reduced by 1000 RMB2. Mr. Luo's account was

1.1.1 Summary During the development process, we may encounter system performance bottlenecks from time to time, which may be caused by insufficient code efficiency or hardware or network problems, it may also be a problem with database design. This

1.1.1 Summary In the development process, we occasionally encounter system performance bottlenecks, which can cause a lot of reasons, may be the code is not efficient, may be hardware or network problems, but also may be the problem of database

interface for executing SQL statements Interface function Statement interface Used to execute a static SQL statement PreparedStatement interface Used to execute precompiled SQL

One way: Read the contents of the SQL script file directly and then pass it to SQL.Code: Runsqlservice:@AutowiredPrivateRunsqldao Runsqldao; /*** Read the contents of the file into SQL execution *@paramSQLPath The path to the SQL file: such as:

The jar package provided by the database vendor to manipulate the database is database driven. If individual vendors provide their own database drivers that can lead to a high cost of learning for developers, Sun provides a set of interface

Reprint the first look, then finishing it ~ ~ ~ ORACLE EXECUTE IMMEDIATE UsageEXECUTE IMMEDIATE replaces the previous Oracle8i Dbms_sql package package.It resolves and immediately executes a dynamic SQL statement or a pl/sql block created by the

The command class of the data provider is the implementation of the idbcommand interface. The command is used to execute database commands. The query, update, and insertion of database data are all implemented by command.The command constructor