Fix Sybase SimpleJdbcCall named parameter binding

spring-jdbc/src/main/java/org/springframework/jdbc/core/metadata/CallMetaDataContext.java

@@ -676,7 +676,9 @@ public String createCallString() {
 	 * @since 4.2
 	 */
 	protected String createParameterBinding(SqlParameter parameter) {
-		return (isNamedBinding() ? parameter.getName() + " => ?" : "?");
+		Assert.state(this.metaDataProvider != null, "No CallMetaDataProvider available");
+
+		return (isNamedBinding() ? this.metaDataProvider.namedParamBindingToUse(parameter.getName()) : "?");
 	}
 
 	private static String lowerCase(@Nullable String paramName) {

spring-jdbc/src/main/java/org/springframework/jdbc/core/metadata/CallMetaDataProvider.java

@@ -180,4 +180,11 @@ void initializeWithProcedureColumnMetaData(DatabaseMetaData databaseMetaData, @N
 	 */
 	boolean isSupportsSchemasInProcedureCalls();
 
+	/**
+	 * Returns the name of the named parameter to use for binding the given parameter name.
+	 * @param paramName the name of the parameter to bind
+	 * @return the name of the named parameter to use for binding the given parameter name,
+	 */
+	String namedParamBindingToUse(@Nullable String paramName);
+
 }

spring-jdbc/src/main/java/org/springframework/jdbc/core/metadata/GenericCallMetaDataProvider.java

@@ -246,6 +246,16 @@ public boolean isSupportsSchemasInProcedureCalls() {
 		return this.supportsSchemasInProcedureCalls;
 	}
 
+	/**
+	 * Returns the name of the named parameter to use for binding the given parameter name.
+	 * @param paramName the name of the parameter to bind
+	 * @return the name of the named parameter to use for binding the given parameter name,
+	 */
+	@Override
+	public String namedParamBindingToUse(@Nullable String paramName) {
+		return paramName + " => ?";
+	}
+
 	/**
 	 * Specify whether the database uses upper case for identifiers.
 	 */

spring-jdbc/src/main/java/org/springframework/jdbc/core/metadata/SybaseCallMetaDataProvider.java

@@ -60,4 +60,9 @@ public boolean byPassReturnParameter(String parameterName) {
 				RETURN_VALUE_NAME.equals(parameterNameToUse(parameterName)));
 	}
 
+	@Override
+	public String namedParamBindingToUse(@Nullable String paramName) {
+		return paramName + " = ?";
+	}
+
 }

spring-jdbc/src/test/java/org/springframework/jdbc/core/simple/SimpleJdbcCallTests.java

@@ -349,4 +349,17 @@ private void verifyAddInvoiceWithMetaData(boolean isFunction) throws SQLExceptio
 		verify(procedureColumnsResultSet).close();
 	}
 
+	@Test
+	void correctSybaseFunctionStatementNamed() throws Exception {
+		given(databaseMetaData.getDatabaseProductName()).willReturn("Sybase");
+		SimpleJdbcCall adder = new SimpleJdbcCall(dataSource)
+				.withoutProcedureColumnMetaDataAccess()
+				.withNamedBinding()
+				.withProcedureName("ADD_INVOICE")
+				.declareParameters(new SqlParameter("@AMOUNT", Types.NUMERIC))
+				.declareParameters(new SqlParameter("@CUSTID", Types.NUMERIC));
+		adder.compile();
+		verifyStatement(adder, "{call ADD_INVOICE(@AMOUNT = ?, @CUSTID = ?)}");
+	}
+
 }