Having a query like:
#Query(value = "select foo from bar where arg='supplémentaire'", nativeQuery = true)
GreenEntity findFoo();
The database is Postgres and running :
SHOW SERVER_ENCODING
return UTF8.
The queried table contains indeed a field arg having for value supplémentaire
However, doing a select on this table won't send supplémentaire as expected but supplémentaire query to return nothing.
Added the following properties to the Spring properties file but this won't fix the issue, nor will spring.datasource.url= jdbc:postgresql://xx:5432/yy?useUnicode=yes&characterEncoding=UTF-8:
spring.sql.init.encoding= UTF-8
server.servlet.encoding.charset = UTF-8
server.servlet.encoding.enabled = true
server.servlet.encoding.force = true
#spring.mandatory-file-encoding = UTF-8
server.tomcat.uri-encoding = UTF-8
spring.messages.encoding = UTF-8
spring.datasource.hikari.data-source-properties.useUnicode=true
spring.datasource.hikari.data-source-properties.characterEncoding=UTF-8
spring.datasource.tomcat.connection-properties=useUnicode=true;characterEncoding=utf-8;
Any ideas how this issue can be fixed ?
NOTE: Using springboot 2.6.6 and associated spring dependencies.
Related
I am using logastash 7.6 with the output-jdbc plugin, but I get an error and I understand that it is because in the event it sends me all the fields to be indexed that are part of #metadata.
Probe just putting the event name without # and it works for me.
How can I get a single field within a #metada set?
ERROR:
ERROR logstash.outputs.jdbc - JDBC - Exception. Not retrying {:exception=>#, :statement=>"UPDATE table SET estate = 'P' WHERE codigo = ? ", :event=>"{\"properties\":{\"rangoAltura1\":null,\"rangoAltura2\":null,\"codigo\":\"DB_001\",\"rangoAltura3\":null,\"descrip\":\"CARLOS PEREZ\",\"codigo\":\"106\",\"rangoAltura5\":null,\"active\":true},\"id\":\"DB_001_555\"}"}
My .conf:
statement => ["UPDATE table SET estate = 'A' WHERE entidad = ? ","%{[#metadata][miEntidad]}"]
{[#metadata][miEntidad]} -----> map['entidad_temp'] = event.get('entidad')
According to the output jdbc plugin README you have it set correctly/
Maybe try the following as a work-around:
statement => ["UPDATE table SET estate = 'A' WHERE entidad = ? ","[#metadata][miEntidad]"]
The H2 Database has a list of commands starting with SET, in particular SET DB_CLOSE_DELAY. I would like to find out what the value of DB_CLOSE_DELAY is. I am using JDBC. Setting is easy
cx.createStatement.execute("SET DB_CLOSE_DELAY 0")
but none of the following returns the actual value of DB_CLOSE_DELAY:
cx.createStatement.executeQuery("DB_CLOSE_DELAY")
cx.createStatement.executeQuery("VALUES(#DB_CLOSE_DELAY)")
cx.createStatement.executeQuery("GET DB_CLOSE_DELAY")
cx.createStatement.executeQuery("SHOW DB_CLOSE_DELAY")
Help would be greatly appreciated.
You can access this and other settings in the INFORMATION_SCHEMA.SETTINGS table - for example:
String url = "jdbc:h2:mem:;DB_CLOSE_DELAY=3";
Connection conn = DriverManager.getConnection(url, "sa", "the password goes here");
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT * FROM INFORMATION_SCHEMA.SETTINGS where name = 'DB_CLOSE_DELAY'");
while (rs.next()) {
System.out.println(rs.getString("name"));
System.out.println(rs.getString("value"));
}
In this test, I use an unnamed in-memory database, and I explicitly set the delay to 3 seconds when I create the DB.
The output from the print statements is:
DB_CLOSE_DELAY
3
I have a file-based H2 database (engine version 1.4.196) with a mediumblob column containing data returned by the COMPRESS() function:
create table foo (compressed_data mediumblob);
...
insert into foo (compressed_data) values (COMPRESS(STRINGTOUTF8('Test'), 'DEFLATE'));
(The table is created and filled by flyway.)
I'd like to read this data in a JDBC client without calling DECOMPRESS() first. (I want to do the decompression client-side for compatibility with another system). I've tried to read the data via an InflaterInputStream, which can uncompress DEFLATE data:
try (InputStream dbStream = rs.getBinaryStream("compressed_data");
InflaterInputStream inflaterStream = new InflaterInputStream(dbStream);
) {
inflaterStream.read();
...
But this causes an error:
java.util.zip.ZipException: incorrect header check
at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:164)
...
Is there any way I can get InflaterInputStream-compatible compressed data from a column in H2?
Since you are already using H2 JDBC to access the database you can simply retrieve the compressed data with getBytes and use the expand method of org.h2.tools.CompressTool to uncompress it:
// .java source file is Cp1252 encoded
String sql = "SELECT COMPRESS(STRINGTOUTF8('fermé'), 'DEFLATE') AS foo";
ResultSet rs = st.executeQuery(sql);
rs.next();
byte[] bytesOut = rs.getBytes(1);
byte[] expanded = org.h2.tools.CompressTool.getInstance().expand(bytesOut);
String strOut = new String(expanded, "UTF-8");
I'm using Sphinx search engine for my application, and I would like to add ruby code inside the sphinx.conf file to update some values dynamically based on my application server hostname? Is it possible to execute the ruby code inside sphinx.conf? Something like below
{
type = mysql
sql_host = testHost
sql_user = test
sql_pass = <%= D.decrypt("encrypted password") %> // Ruby CODE
sql_db = {{database_name}}
sql_query_pre = SET TIME_ZONE = '+0:00'
sql_query_pre = SET SESSION group_concat_max_len = 32768
sql_query_pre = SET NAMES utf8
}
In short, no it's not possible. Sphinx is not capable of executing Ruby directly in its .conf file.
That being said, you can use environment variables to keep the password out of your config file:
{
type = mysql
sql_host = testHost
sql_user = test
sql_pass = $SQL_PASS
sql_db = {{database_name}}
sql_query_pre = SET TIME_ZONE = '+0:00'
sql_query_pre = SET SESSION group_concat_max_len = 32768
sql_query_pre = SET NAMES utf8
}
Then you can either set the environment variable in the commandline when you run Sphinx:
SQL_PASS="mypassword123" indexer -c /path/to/config
Or set it in your .bashrc:
export SQL_PASS="mypassword123"
Or set it in ruby:
ENV["SQL_PASS"] = "mypassword123"
Keep in mind that no matter what method you choose, you must set the environment variable before you run Sphinx.
I am using SQL 'select' to access a db2 table with schemaname.tablename as follows:
select 'colname' from schemaname.tablename
The tablename has 'colname' = SERVER_POOL_NAME for sure . yet I get the following error :
"Invalid parameter: Unknown column name SERVER_POOL_NAME . ERRORCODE=-4460, SQLSTATE=null"
I am using db2 v10.1 FP0 jdbc driver version 3.63.123. JDBC 3.0 spec
The application is run as db2 administrator and also Windows 2008 admin
I saw a discussion about this issue at : db2jcc4.jar Invalid parameter: Unknown column name
But i do not know where the connection parameter 'useJDBC4ColumnNameAndLabelSemantics should be set ( to value =2)
I saw the parameter should appear in com.ibm.db2.jcc.DB2BaseDataSource ( see: http://publib.boulder.ibm.com/infocenter/db2luw/v9r5/index.jsp?topic=%2Fcom.ibm.db2.luw.apdv.java.doc%2Fsrc%2Ftpc%2Fimjcc_r0052607.html)
But i do not find this file on my DB2 installation . maybe it is packed in a .jar file
Any advice ?
There is a link on the page you're referring to, showing you the ways to set properties. Specifically, you can populate a Properties object with desired values and supply it to the getConnection() call:
String url = "jdbc:db2://host:50000/yourdb";
Properties props = new Properties();
props.setProperty("useJDBC4ColumnNameAndLabelSemantics", "2");
// set other required properties
Connection c = DriverManager.getConnection(url, props);
Alternatively, you can embed property name/value pairs in the JDBC URL itself:
String url = "jdbc:db2://host:50000/yourdb:useJDBC4ColumnNameAndLabelSemantics=2;";
// set other required properties
Connection c = DriverManager.getConnection(url);
Note that each name/value pair must be terminated by a semicolon, even the last one.