diff --git a/ddl/postgres/tm_cz/functions/i2b2_create_concept_counts.sql b/ddl/postgres/tm_cz/functions/i2b2_create_concept_counts.sql
index aa1abe3a..1062e1ac 100644
--- a/ddl/postgres/tm_cz/functions/i2b2_create_concept_counts.sql
+++ b/ddl/postgres/tm_cz/functions/i2b2_create_concept_counts.sql
@@ -53,7 +53,7 @@ BEGIN
   
 	begin
 	delete from i2b2demodata.concept_counts
-	where concept_path like path || '%' escape '`';
+	where concept_path like path || '%' escape E'\b';
 	get diagnostics rowCt := ROW_COUNT;
 	exception
 	when others then
@@ -83,9 +83,9 @@ BEGIN
 	    ,i2b2metadata.i2b2 la
 		,i2b2demodata.observation_fact tpm
 		,i2b2demodata.patient_dimension p
-	where fa.c_fullname like path || '%' escape '`'
+	where fa.c_fullname like path || '%' escape E'\b'
 	  and substr(fa.c_visualattributes,2,1) != 'H'
-	  and la.c_fullname like fa.c_fullname || '%' escape '`'
+	  and la.c_fullname like fa.c_fullname || '%' escape E'\b'
 	  and la.c_visualattributes like 'L%'
 	  and tpm.patient_num = p.patient_num
 	  and la.c_basecode = tpm.concept_cd   -- outer join in oracle ???
@@ -110,7 +110,7 @@ BEGIN
 	begin
 	update i2b2metadata.i2b2
 	set c_visualattributes = substr(c_visualattributes,1,1) || 'H' || substr(c_visualattributes,3,1)
-	where c_fullname like path || '%' escape '`'
+	where c_fullname like path || '%' escape E'\b'
 	  and (not exists
 			 (select 1 from concept_counts nc
 				  where c_fullname = nc.concept_path)
diff --git a/ddl/postgres/tm_cz/functions/i2b2_delete_all_nodes.sql b/ddl/postgres/tm_cz/functions/i2b2_delete_all_nodes.sql
index 1557a502..4672cf10 100644
--- a/ddl/postgres/tm_cz/functions/i2b2_delete_all_nodes.sql
+++ b/ddl/postgres/tm_cz/functions/i2b2_delete_all_nodes.sql
@@ -55,7 +55,7 @@ Begin
 		begin
 		DELETE FROM i2b2demodata.OBSERVATION_FACT 
 		WHERE 
-		concept_cd IN (SELECT C_BASECODE FROM i2b2metadata.I2B2 WHERE C_FULLNAME LIKE PATH || '%' escape '`');
+		concept_cd IN (SELECT C_BASECODE FROM i2b2metadata.I2B2 WHERE C_FULLNAME LIKE PATH || '%' escape E'\b');
 		get diagnostics rowCt := ROW_COUNT;
 		exception
 		when others then
@@ -73,7 +73,7 @@ Begin
 		--CONCEPT DIMENSION
 		begin
 		DELETE FROM i2b2demodata.CONCEPT_DIMENSION
-		WHERE CONCEPT_PATH LIKE path || '%' escape '`';
+		WHERE CONCEPT_PATH LIKE path || '%' escape E'\b';
 		get diagnostics rowCt := ROW_COUNT;
 		exception
 		when others then
@@ -91,7 +91,7 @@ Begin
 		--I2B2
 		begin
 		DELETE FROM i2b2metadata.i2b2
-		WHERE C_FULLNAME LIKE PATH || '%' escape '`';
+		WHERE C_FULLNAME LIKE PATH || '%' escape E'\b';
 		get diagnostics rowCt := ROW_COUNT;
 		exception
 		when others then
@@ -109,7 +109,7 @@ Begin
 		--i2b2_secure
 		begin
 		DELETE FROM i2b2metadata.i2b2_secure
-		WHERE C_FULLNAME LIKE PATH || '%' escape '`';
+		WHERE C_FULLNAME LIKE PATH || '%' escape E'\b';
 		get diagnostics rowCt := ROW_COUNT;
 		exception
 		when others then
@@ -128,7 +128,7 @@ Begin
 		--concept_counts
 		begin
 		DELETE FROM i2b2demodata.concept_counts
-		WHERE concept_path LIKE PATH || '%' escape '`';
+		WHERE concept_path LIKE PATH || '%' escape E'\b';
 		get diagnostics rowCt := ROW_COUNT;
 		exception
 		when others then
diff --git a/ddl/postgres/tm_cz/functions/i2b2_extend_clinical_data.sql b/ddl/postgres/tm_cz/functions/i2b2_extend_clinical_data.sql
index c0db1ae4..ab220f18 100644
--- a/ddl/postgres/tm_cz/functions/i2b2_extend_clinical_data.sql
+++ b/ddl/postgres/tm_cz/functions/i2b2_extend_clinical_data.sql
@@ -62,7 +62,7 @@ Declare
 	delNodes CURSOR is
 	select distinct c_fullname 
 	from  i2b2metadata.i2b2
-	where c_fullname like topNode || '%' escape '`'
+	where c_fullname like topNode || '%' escape E'\b'
       and substr(c_visualattributes,2,1) = 'H';
 	  
 	--	cursor to determine if any leaf nodes exist in i2b2 that are not used in this reload (node changes from text to numeric or numeric to text)
@@ -71,7 +71,7 @@ Declare
 	select l.c_fullname
 	from i2b2metadata.i2b2 l
 	where l.c_visualattributes like 'L%'
-	  and l.c_fullname like topNode || '%' escape '`'
+	  and l.c_fullname like topNode || '%' escape E'\b'
 	  and l.c_fullname not in
 		 (select t.leaf_node 
 		  from tm_wz.wt_trial_nodes t
@@ -1059,7 +1059,7 @@ select count(*) into pExists from i2b2demodata.observation_fact of where (of.pat
 	  and t.leaf_node = i.c_fullname
 	  and not exists		-- don't insert if lower level node exists
 		 (select 1 from tm_wz.wt_trial_nodes x
-		  where x.leaf_node like t.leaf_node || '%_' escape '`')
+		  where x.leaf_node like t.leaf_node || '%_' escape E'\b')
 	  and a.data_value is not null;
 	get diagnostics rowCt := ROW_COUNT; 
 	exception
diff --git a/ddl/postgres/tm_cz/functions/i2b2_fill_in_tree.sql b/ddl/postgres/tm_cz/functions/i2b2_fill_in_tree.sql
index 6cade9e3..ff6ae80b 100644
--- a/ddl/postgres/tm_cz/functions/i2b2_fill_in_tree.sql
+++ b/ddl/postgres/tm_cz/functions/i2b2_fill_in_tree.sql
@@ -43,7 +43,7 @@ Declare
     --Trimming off the last node as it would never need to be added.
     select distinct substr(c_fullname, 1,instr(c_fullname,'\',-2,1)) as c_fullname
     from i2b2metadata.i2b2 
-    where c_fullname like path || '%' escape '`';
+    where c_fullname like path || '%' escape E'\b';
 
   
 BEGIN
diff --git a/ddl/postgres/tm_cz/functions/i2b2_load_clinical_data.sql b/ddl/postgres/tm_cz/functions/i2b2_load_clinical_data.sql
index b52f12dc..72257e3c 100644
--- a/ddl/postgres/tm_cz/functions/i2b2_load_clinical_data.sql
+++ b/ddl/postgres/tm_cz/functions/i2b2_load_clinical_data.sql
@@ -55,7 +55,7 @@ Declare
 	delNodes CURSOR is
 	select distinct c_fullname 
 	from  i2b2metadata.i2b2
-	where c_fullname like topNode || '%' escape '`'
+	where c_fullname like topNode || '%' escape E'\b'
       and substr(c_visualattributes,2,1) = 'H';
 	  
 	--	cursor to determine if any leaf nodes exist in i2b2 that are not used in this reload (node changes from text to numeric or numeric to text)
@@ -64,7 +64,7 @@ Declare
 	select l.c_fullname
 	from i2b2metadata.i2b2 l
 	where l.c_visualattributes like 'L%'
-	  and l.c_fullname like topNode || '%' escape '`'
+	  and l.c_fullname like topNode || '%' escape E'\b'
 	  and l.c_fullname not in
 		 (select t.leaf_node 
 		  from tm_wz.wt_trial_nodes t
@@ -512,11 +512,13 @@ BEGIN
 	select tm_cz.cz_write_audit(jobId,databaseName,procedureName,'Set visit_name to null when only DATALABE in category_cd',rowCt,stepCt,'Done') into rtnCd;
 	
 	--	change any % to Pct and & and + to ' and ' and _ to space in data_label only
+	--	change any % to Pct and & and + to ' and ' and \ to space in data_value only
+        --      -- changing \ to space is to prevent data value to be interpreteted as a (sub)path
 	
 	begin
 	update tm_wz.wrk_clinical_data
 	set data_label=replace(replace(replace(replace(data_label,'%',' Pct'),'&',' and '),'+',' and '),'_',' ')
-	   ,data_value=replace(replace(replace(data_value,'%',' Pct'),'&',' and '),'+',' and ')
+	   ,data_value=replace(replace(replace(replace(data_value,'%',' Pct'),'&',' and '),'+',' and '),'\',' ')
 	   ,category_cd=replace(replace(category_cd,'%',' Pct'),'&',' and ')
 	   ,category_path=replace(replace(category_path,'%',' Pct'),'&',' and ');
 	   exception
@@ -1136,7 +1138,7 @@ BEGIN
 	  and t.leaf_node = i.c_fullname
 	  and not exists		-- don't insert if lower level node exists
 		 (select 1 from tm_wz.wt_trial_nodes x
-		  where x.leaf_node like t.leaf_node || '%_' escape '`')
+		  where x.leaf_node like t.leaf_node || '%_' escape E'\b')
 	  and a.data_value is not null;
 	get diagnostics rowCt := ROW_COUNT; 
 	exception
@@ -1158,8 +1160,8 @@ BEGIN
 	with upd as (select p.c_fullname, count(*) as nbr_children 
 				 from i2b2metadata.i2b2 p
 					 ,i2b2metadata.i2b2 c
-				 where p.c_fullname like topNode || '%' escape '`'
-				   and c.c_fullname like p.c_fullname || '%' escape '`'
+				 where p.c_fullname like topNode || '%' escape E'\b'
+				   and c.c_fullname like p.c_fullname || '%' escape E'\b'
 				 group by p.c_fullname)
 	update i2b2metadata.i2b2 b
 	set c_visualattributes=case when upd.nbr_children = 1 
@@ -1173,7 +1175,7 @@ BEGIN
 	where b.c_fullname = upd.c_fullname
 	  and b.c_fullname in
 		 (select x.c_fullname from i2b2 x
-		  where x.c_fullname like topNode || '%' escape '`');
+		  where x.c_fullname like topNode || '%' escape E'\b');
   	get diagnostics rowCt := ROW_COUNT;
 	exception
 	when others then
diff --git a/ddl/postgres/tm_cz/functions/i2b2_process_acgh_data.sql b/ddl/postgres/tm_cz/functions/i2b2_process_acgh_data.sql
index 3a7a505e..daedb9a5 100644
--- a/ddl/postgres/tm_cz/functions/i2b2_process_acgh_data.sql
+++ b/ddl/postgres/tm_cz/functions/i2b2_process_acgh_data.sql
@@ -74,7 +74,7 @@ Declare
 	delNodes CURSOR is
 	select distinct c_fullname
 	from  i2b2metadata.i2b2
-	where c_fullname like topNode || '%' escape '`'
+	where c_fullname like topNode || '%' escape E'\b'
       and substr(c_visualattributes,2,1) = 'H';
 
 BEGIN
diff --git a/ddl/postgres/tm_cz/functions/i2b2_process_mrna_data.sql b/ddl/postgres/tm_cz/functions/i2b2_process_mrna_data.sql
index c6611eb3..ccda965f 100644
--- a/ddl/postgres/tm_cz/functions/i2b2_process_mrna_data.sql
+++ b/ddl/postgres/tm_cz/functions/i2b2_process_mrna_data.sql
@@ -74,7 +74,7 @@ Declare
 	delNodes CURSOR is
 	select distinct c_fullname
 	from  i2b2metadata.i2b2
-	where c_fullname like topNode || '%' escape '`'
+	where c_fullname like topNode || '%' escape E'\b'
       and substr(c_visualattributes,2,1) = 'H';
 
 BEGIN
diff --git a/ddl/postgres/tm_cz/functions/i2b2_process_rnaseq_data.sql b/ddl/postgres/tm_cz/functions/i2b2_process_rnaseq_data.sql
index 41e5603b..38b2b257 100644
--- a/ddl/postgres/tm_cz/functions/i2b2_process_rnaseq_data.sql
+++ b/ddl/postgres/tm_cz/functions/i2b2_process_rnaseq_data.sql
@@ -76,7 +76,7 @@ Declare
 	delNodes CURSOR is
 	select distinct c_fullname
 	from  i2b2metadata.i2b2
-	where c_fullname like topNode || '%' escape '`'
+	where c_fullname like topNode || '%' escape E'\b'
       and substr(c_visualattributes,2,1) = 'H';
 
 BEGIN