diff --git a/core/database/query_builder.cpp b/core/database/query_builder.cpp
index 0434d50..5d51b5d 100644
--- a/core/database/query_builder.cpp
+++ b/core/database/query_builder.cpp
@@ -29,6 +29,17 @@ QueryBuilder *QueryBuilder::cvalues() {
 	return this;
 }
 
+QueryBuilder *QueryBuilder::str() {
+	return this;
+}
+QueryBuilder *QueryBuilder::cstr() {
+	return this;
+}
+
+QueryBuilder *QueryBuilder::like() {
+	return this;
+}
+
 QueryBuilder *QueryBuilder::select(const std::string &params) {
 	return this;
 }
@@ -75,6 +86,10 @@ QueryBuilder *QueryBuilder::val(const bool param) {
 	return this;
 }
 
+QueryBuilder *QueryBuilder::like(const std::string &str) {
+	return this;
+}
+
 QueryBuilder *QueryBuilder::set() {
 	return this;
 }
@@ -128,6 +143,9 @@ QueryBuilder *QueryBuilder::einsert(const std::string &table_name) {
 
 	return this;
 }
+QueryBuilder *QueryBuilder::elike(const std::string &str) {
+	return like(escape(str));
+}
 QueryBuilder *QueryBuilder::evalues(const std::string &params_str) {
 	return values(escape(params_str));
 }
@@ -158,6 +176,10 @@ QueryBuilder *QueryBuilder::lor() {
 	return this;
 }
 
+QueryBuilder *QueryBuilder::wildcard() {
+	return this;
+}
+
 QueryBuilder *QueryBuilder::w(const std::string &str) {
 	query_result += str + " ";
 
diff --git a/core/database/query_builder.h b/core/database/query_builder.h
index eff00b8..f6ac0e1 100644
--- a/core/database/query_builder.h
+++ b/core/database/query_builder.h
@@ -21,6 +21,11 @@ public:
 	virtual QueryBuilder *values();
 	virtual QueryBuilder *cvalues();
 
+	virtual QueryBuilder *str();
+	virtual QueryBuilder *cstr();
+
+	virtual QueryBuilder *like();
+
 	virtual QueryBuilder *select(const std::string &params);
 	virtual QueryBuilder *udpate(const std::string &params);
 	virtual QueryBuilder *del(const std::string &params);
@@ -36,6 +41,8 @@ public:
 	virtual QueryBuilder *val(const int param);
 	virtual QueryBuilder *val(const bool param);
 
+	virtual QueryBuilder *like(const std::string &str);
+
 	virtual QueryBuilder *set();
 	virtual QueryBuilder *cset();
 
@@ -56,6 +63,7 @@ public:
 	virtual QueryBuilder *ewhere(const std::string &params);
 	virtual QueryBuilder *efrom(const std::string &params);
 	virtual QueryBuilder *einsert(const std::string &table_name);
+	virtual QueryBuilder *elike(const std::string &str);
 	virtual QueryBuilder *evalues(const std::string &params_str);
 	virtual QueryBuilder *eval(const std::string &param);
 	//note col is NOT escaped
@@ -70,6 +78,8 @@ public:
 	virtual QueryBuilder *land();
 	virtual QueryBuilder *lor();
 
+	virtual QueryBuilder *wildcard();
+
 	virtual QueryBuilder *w(const std::string &str);
 	virtual QueryBuilder *ew(const std::string &str);
 
diff --git a/database/sqlite/sqlite3_query_builder.cpp b/database/sqlite/sqlite3_query_builder.cpp
index 8786989..cacd9a1 100644
--- a/database/sqlite/sqlite3_query_builder.cpp
+++ b/database/sqlite/sqlite3_query_builder.cpp
@@ -48,6 +48,23 @@ QueryBuilder *SQLite3QueryBuilder::cvalues() {
 	return this;
 }
 
+QueryBuilder *SQLite3QueryBuilder::str() {
+	query_result += "'";
+
+	return this;
+}
+QueryBuilder *SQLite3QueryBuilder::cstr() {
+	query_result += "'";
+
+	return this;
+}
+
+QueryBuilder *SQLite3QueryBuilder::like() {
+	query_result += "LIKE ";
+
+	return this;
+}
+
 QueryBuilder *SQLite3QueryBuilder::select(const std::string &params) {
 	query_result += "SELECT " + params + " ";
 
@@ -128,6 +145,12 @@ QueryBuilder *SQLite3QueryBuilder::val(const bool param) {
 	return this;
 }
 
+QueryBuilder *SQLite3QueryBuilder::like(const std::string &str) {
+	query_result += "LIKE '" + str + "' ";
+
+	return this;
+}
+
 QueryBuilder *SQLite3QueryBuilder::set() {
 	query_result += "SET ";
 
@@ -225,6 +248,12 @@ QueryBuilder *SQLite3QueryBuilder::lor() {
 	return this;
 }
 
+QueryBuilder *SQLite3QueryBuilder::wildcard() {
+	query_result += "%";
+
+	return this;
+}
+
 std::string SQLite3QueryBuilder::escape(const std::string &params) {
 	if (!_db) {
 		printf("SQLite3QueryBuilder::escape !db!\n");
diff --git a/database/sqlite/sqlite3_query_builder.h b/database/sqlite/sqlite3_query_builder.h
index 4c827e4..2739d62 100644
--- a/database/sqlite/sqlite3_query_builder.h
+++ b/database/sqlite/sqlite3_query_builder.h
@@ -20,6 +20,11 @@ public:
 	QueryBuilder *values();
 	QueryBuilder *cvalues();
 
+	QueryBuilder *str();
+	QueryBuilder *cstr();
+
+	QueryBuilder *like();
+
 	QueryBuilder *select(const std::string &params);
 	QueryBuilder *udpate(const std::string &params);
 	QueryBuilder *del(const std::string &params);
@@ -35,6 +40,8 @@ public:
 	QueryBuilder *val(const int param);
 	QueryBuilder *val(const bool param);
 
+	QueryBuilder *like(const std::string &str);
+
 	QueryBuilder *set();
 	QueryBuilder *cset();
 	QueryBuilder *setp(const std::string &col, const std::string &param);
@@ -51,8 +58,10 @@ public:
 	QueryBuilder *offset(const int num);
 
 	//l=logical (and, or are operators)
-	virtual QueryBuilder *land();
-	virtual QueryBuilder *lor();
+	QueryBuilder *land();
+	QueryBuilder *lor();
+
+	QueryBuilder *wildcard();
 
 	QueryBuilder *select_last_insert_id();