XMLEXISTS predicate
Supported by ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
The XMLEXISTS predicate can be used to check whether an XQuery or XPath expression produces a value within an XML document (see also the XMLQUERY function)
SELECT 1
WHERE xmlexists('/a/b' PASSING '<a><b/></a>')
create.selectOne()
.where(xmlexists("/a/b").passing(XML.valueOf("<a><b/></a>")))
.fetch();
Dialect support
This example using jOOQ:
xmlexists("/a/b").passing(xml("<a><b/></a>"))
Translates to the following dialect specific expressions:
DB2
XMLEXISTS( '/a/b' PASSING xmlparse(DOCUMENT '<a><b/></a>') )
Oracle
XMLEXISTS(
'/a/b'
PASSING xmltype.createxml('<a><b/></a>')
)
Postgres
XMLEXISTS(
'/a/b'
PASSING CAST('<a><b/></a>' AS xml)
)
SQLServer
(CAST('<a><b/></a>' AS xml).EXIST('/a/b') = 1)
Teradata
XMLEXISTS( '/a/b' PASSING '<a><b/></a>' )
ASE, Access, Aurora MySQL, Aurora Postgres, BigQuery, ClickHouse, CockroachDB, Databricks, DuckDB, Exasol, Firebird, H2, HSQLDB, Hana, Informix, MariaDB, MemSQL, MySQL, Redshift, SQLDataWarehouse, SQLite, Snowflake, Spanner, Sybase, Trino, Vertica, YugabyteDB
/* UNSUPPORTED */
Generated with jOOQ 3.21. Support in older jOOQ versions may differ. Translate your own SQL on our website
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