clob

My stored function creates temporary LOB instance using: Dbms_Lob.CreateTemporary(BUFFER, TRUE, Dbms_Lob.SESSION); where BUFFER is a local CLOB variable. After that the function fills BUFFER with some data and returns it. Duration parameter of Dbms_Lob.CreateTemporary in my case is Dbms_Lob.SESSION , but according to oracle documentation : The duration parameter passed to dbms_lob.createtemporary() is a hint . The duration of the new temp LOB is the same as the duration of the locator variable in PL/SQL. For example, in the preceding program block, the program variable a has the duration of

I have created a table on an Oracle 10g database with this structure : create table myTable ( id number(32,0) primary key, myData clob ) I can insert rows in the table without any problem, but when I try to read data from the table using OleDb connection, I get an exception. Here is the code I use : using (OleDbConnection dbConnection = new OleDbConnection("ConnectionString")) { dbConnection.Open(); OleDbCommand dbCommand = dbConnection.CreateCommand(); dbCommand.CommandText = "SELECT * FROM myTable WHERE id=?"; dbCommand.Parameters.AddWithValue("ID", id); OleDbDataReader dbReader = dbCommand

mysql转oracle数据库时，若表中存在long型字段（length>=4096），读取表数据有时会报错“java.sql.SQLException: 流已被关闭” 。 debug之后发现是因为数据库表中存在longtext 类型的数据，oracle没有这种类型。oracle有个等价的类型，叫clob。可参考 StackOverflow上的介绍 。因此将该字段改为clob类型的就OK了。 用注解的方式： @Entity public class domain { @Column(length = 4096) private String richText; } 改为 public class domain { @Lob @Basic(fetch = FetchType.LAZY) @Column(columnDefinition = "CLOB", nullable = true) private String richText; } 来源： oschina 链接： https://my.oschina.net/u/875046/blog/129288

Table: customers ID NAME DATATYPE NUMBER VARCHAR2(100) CLOB I want to change the DATA column from CLOB to `VARCHAR2(1000) I have try ALTER TABLE customers MODIFY DATA VARCHAR2 (1000) also ALTER TABLE customers MODIFY (DATA VARCHAR2 (1000)) also alter table customers modify (data VARCHAR2(4000)) those normally works if the datatype is not a clob but I am getting a ORA-22859 because I am using oracle toad/apex. Rahul Tripathi You may try this: Add a new column as varchar2 alter table my_table add (new_column varchar2(1000)); UPDATE CLOB name to varchar2 column; update my_table set new_column

The .dmp is a dump of a table built in Oracle 10g (Express Edition) and one of the fields is of CLOB type. I was trying to simply export the table to xml/csv files then import it to the MySql, but the export simply ignored the CLOB field... (I was using sqldeveloper for that). I noticed this post explaining how to extract the CLOB to text file but it seems to miss the handling of the other fields or at least the primary key fields. can it be adopted to create a csv of the complete table? (I am not familiar with plsql at all) As the brute force approach, I can use my python interface to simply

I have a table with a java.sql.Clob column in Hibernate The hbm file: <class name="com.model.ClobModel" table="table1"> <id name="id" column="id"> <generator class="assigned"></generator> </id> <property name="clobData" type="clob"> <column name="ClobData"></column> </property> This is the ClobModel : private Integer id; public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } private Clob clobData; public Clob getClobData() { return clobData; } public void setClobData(Clob clobData) { this.clobData = clobData; } When I tried this in hibernate: SessionFactory sf =